Interstate 526 bridge over Wando River

Introduction

US Highway 17 icon US Highway 52 icon US Highway 321 icon US Highway 601 icon Interstate 526 icon Interstate 95 icon Interstate 77 icon Interstate 26 icon

Scour and depositional responses to hydrologic events have been shown to be a major threat to a bridge’s infrastructure and thus a leading cause of bridge failures within the United States. The South Carolina Department of Transportation (SCDOT) has generated a list of bridge structures (see Bridge Scour Table) within South Carolina that have been deemed to be scour critical sites as defined by the Federal Highway Administration (FHWA). These scour critical sites are required, by the FHWA, to have a plan of action (POA) that should include countermeasures. The FHWA has approved real-time scour monitoring as a countermeasure to help assess the health of bridge structures.

Sonar-based monitoring sensors have been installed on 10 bridges along with real-time stream gages and cameras. The datum of the stage gages is tied to the NAVD88 datum so that river levels can be monitored and referenced to the bridge structure. The scour monitoring sensors are referenced to the same datum as well. Monitoring at the tidally affected sites, such as the Wando River and Cooper River, includes the computation of discharge as well. The cameras can monitor the formation of debris piles and periods of high flow events.

Bridge Scour Table
Equipment Type USGS Site Number Site Name DOT Bridge Number
Sensor,
Camera
02130810 PEEDEE RIVER NEAR FLORENCE,SC 2110009531600 (I-95 SB)
2110009511600 (I-95 NB)
Sensor,
Camera
02131510 LYNCHES RIVER AT I-95, ABOVE OLANTA,SC 02110009530100 (I-95 SB)
02110009510100 (I-95 NB)
Camera 021689801 SALUDA RIVER ABOVE I-26 NEAR WEST COLUMBIA,SC 4010012620071
Camera 021695002 CONGAREE RIVER AT US321 NEAR WEST COLUMBIA,SC 3220002100800
Sensor,
Camera
021695075 CONGAREE RIVER BELOW CAYCE,SC 3210007730500 (I-77 WB)
3210007710500 (I-77 EB)
Sensor,
Camera
02135501 BLACK RIVER AT I-95, NEAR MANNING,SC 1410095314000 (I-95 SB)
1410009521400 (I-95 NB)
Sensor,
Camera
021355015 TEARCOAT BRANCH AT I-95, NEAR MANNING,SC 1410009531100 (I-95 SB)
141009511100 (I-95 NB)
Sensor,
Camera
02169750 CONGAREE RIVER AT U.S. HWY 601 NR. FORT MOTTE, SC 0920060100300
Sensor,
Camera
02135615 POCOTALIGO RIVER AT I-95, ABOVE MANNING,SC 1410009510900 (I-95 NB)
1410009530900 (I-95 SB)
Camera 02136350 PEE DEE RIVER AT GEORGETOWN, SC Winyah Bay Fishing and Observation Pier
Sensor,
Camera
02172002 LAKE MOULTRIE TAILRACE CANAL AT MONCKS CORNER, SC 0820001707600
Sensor,
Camera
021720677 COOPER RIVER @ FILBIN CREEK @ NORTH CHARLESTON, SC 0810052602100
Sensor,
Camera
021720698 WANDO RIVER ABOVE MT PLEASANT, SC 1010052642500

Select Bridge To Display Graphs, Cameras and Location Information


Pee Dee River (02130810)

Interstate 95 iconInterstate 95: Upstream looking downstream at southbound bridge
PEEDEE RIVER NEAR FLORENCE,SC bridge

Scour sensor on upstream bridge (southbound), right pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.


Camera on upstream bridge (southbound) looking at downstream bridge (northbound)

Our camera is experiencing technical difficulties


Bridge Profile and River Bottom Cross-Section Survey (CSS)
(reference: looking from upstream to downstream)

  Graph Parameters




Graph Values
(mouse over graph)
Data Format:
Distance Left Shore to Right Shore
Bridge and River Bottom Elevations



  Graph Parameters





Graph Values
(mouse over graph)
Data Format:
Distance Left Shore to Right Shore
Bridge and River Bottom Elevations



Flood 2018

Flood 2018

Debris Pile

Debris pile at bridge pier

Lynches River (02131510)

Interstate 95 iconInterstate 95: Upstream looking downstream at I-95 southbound, from left bank
LYNCHES RIVER AT I-95, ABOVE OLANTA,SC bridge

Scour sensor on upstream bridge (southbound), left pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.

Scour sensor on upstream bridge (southbound), right pier(reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.


Scour sensor on downstream bridge (northbound), left pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.

Scour sensor on downstream bridge (northbound), right pier(reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.


Camera on upstream bridge (southbound) looking down

Our camera is experiencing technical difficulties

Camera on downstream bridge (northbound) looking upstream

Our camera is experiencing technical difficulties


Bridge Profile and River Bottom Cross-Section Survey (CSS)
(reference: looking from upstream to downstream)

  Graph Parameters






Graph Values
(mouse over graph)
Data Format:
Distance Left Shore to Right Shore
Bridge and River Bottom Elevations



  Graph Parameters






Graph Values
(mouse over graph)
Data Format:
Distance Left Shore to Right Shore
Bridge and River Bottom Elevations



Downstream scour equipment

Downstream scour equipment

Upstream scour equipment

Upstream scour equipment

Saluda River above I-26 near West Columbia (021689801)


No sensors at this location


Upstream face of upstream bridge

Our camera is experiencing technical difficulties


No Cross-Section Survey graphs at this location


Congaree River at US321 near West Columbia (021695002)


No sensors at this location


Upstream side of bridge

Our camera is experiencing technical difficulties


No Cross-Section Survey graphs at this location


Congaree River below Cayce, SC (021695075)

Interstate 77 iconInterstate 77 Downstream looking upstream at northbound bridge
CONGAREE RIVER BELOW CAYCE,SC bridge

Upstream, left pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.

Upstream, right pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.


Downstream, left pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.

Downstream, right pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.


Camera on upstream bridge (southbound) looking down

Our camera is experiencing technical difficulties

Camera on downstream bridge (northbound) looking looking down

Our camera is experiencing technical difficulties


Bridge Profile and River Bottom Cross-Section Survey (CSS)
(reference: looking from upstream to downstream)

  Graph Parameters






Graph Values
(mouse over graph)
Data Format:
Distance Left Shore to Right Shore
Bridge and River Bottom Elevations



  Graph Parameters






Graph Values
(mouse over graph)
Data Format:
Distance Left Shore to Right Shore
Bridge and River Bottom Elevations



Black River (02135501)

Interstate 95 iconInterstate 95: Upstream looking downstream at I-95 southbound, from right bank
BLACK RIVER AT I-95, NEAR MANNING,SC bridge

Scour sensor on upstream bridge (southbound), left pier(reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.

Scour sensor on upstream bridge (southbound), right pier(reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.


Upstream face of upstream bridge

Our camera is experiencing technical difficulties

Downstream bridge looking at upstream bridge

Our camera is experiencing technical difficulties


Bridge Profile and River Bottom Cross-Section Survey (CSS)
(reference: looking from upstream to downstream)

  Graph Parameters






Graph Values
(mouse over graph)
Data Format:
Distance Left Shore to Right Shore
Bridge and River Bottom Elevations



Downstream scour equipment

Downstream scour equipment

Tearcoat Branch (021355015)

Interstate 95 iconInterstate 95: Upstream looking downstream at I-95 southbound, from left bank
TEARCOAT BRANCH AT I-95, NEAR MANNING,SC bridge

Scour sensor on upstream bridge (southbound), left pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.

Scour sensor on upstream bridge (northbound), right pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.


Upstream face of upstream bridge (southbound)

Our camera is experiencing technical difficulties

Downstream face of downstream bridge (northbound)

Our camera is experiencing technical difficulties


Bridge Profile and River Bottom Cross-Section Survey (CSS)
(reference: looking from upstream to downstream)

  Graph Parameters






Graph Values
(mouse over graph)
Data Format:
Distance Left Shore to Right Shore
Bridge and River Bottom Elevations



Upstream scour equipment

Upstream scour equipment

Downstream scour equipment

Downstream scour equipment

Congaree Hwy 601 (02169750)

US Highway 601 iconUS Highway 601 Upstream looking downstream
CONGAREE RIVER AT U.S. HWY 601 NR. FORT MOTTE, SC bridge

Left Pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.

Right Pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.


Downstream side

Our camera is experiencing technical difficulties


Bridge Profile and River Bottom Cross-Section Survey (CSS)
(reference: looking from upstream to downstream)

  Graph Parameters






Graph Values
(mouse over graph)
Data Format:
Distance Left Shore to Right Shore
Bridge and River Bottom Elevations


Interstate 95 iconInterstate 95: Upstream looking downstream at I-95 southbound, from right bank
POCOTALIGO RIVER AT I-95, ABOVE MANNING,SC bridge

Scour sensor on upstream bridge (southbound) (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.

Scour sensor on downstream bridge (northbound) (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.


Upstream face of upstream bridge (southbound)

Our camera is experiencing technical difficulties

Downstream face of downstream bridge (northbound)

Our camera is experiencing technical difficulties


Bridge Profile and River Bottom Cross-Section Survey (CSS)
(reference: looking from upstream to downstream)

  Graph Parameters






Graph Values
(mouse over graph)
Data Format:
Distance Left Shore to Right Shore
Bridge and River Bottom Elevations



  Graph Parameters






Graph Values
(mouse over graph)
Data Format:
Distance Left Shore to Right Shore
Bridge and River Bottom Elevations



Pee Dee River at Georgetown (02136350)


No sensors at this location


Upstream looking downstream at US 17

Our camera is experiencing technical difficulties


No Cross-Section Survey graphs at this location

Lake Moultrie (02172002)

US Highway 52 iconUS Highway 52

Upstream face, left pier
(reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.

Upstream face, right pier
(reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.


Downstream View

Our camera is experiencing technical difficulties


Bridge Profile and River Bottom Cross-Section Survey (CSS)
(reference: looking from upstream to downstream)


  Graph Parameters





Graph Values
(mouse over graph)
Data Format:
Distance Left Shore to Right Shore
Bridge and River Bottom Elevations


Cooper River, North Charleston (021720677)

Interstate 526 iconInterstate 526: Downstream looking upstream
COOPER RIVER @ FILBIN CREEK @ NORTH CHARLESTON, SC bridge

Downstream Left Pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.

Downstream Right Pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.


Upstream face

Our camera is experiencing technical difficulties


Bridge Profile and River Bottom Cross-Section Survey (CSS)
(reference: looking from upstream to downstream)

  Graph Parameters




Graph Values
(mouse over graph)
Data Format:
Distance Left Shore to Right Shore
Bridge and River Bottom Elevations


Wando River, North Charleston (021720698)

Interstate 526 iconInterstate 526: Downstream looking upstream
WANDO RIVER ABOVE MT PLEASANT, SC bridge

Downstream Left Pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.

Downstream Right Pier (reference: looking from upstream to downstream)

To change the graph scale, click and drag mouse vertical or horizontal.
To reset the graph scale, double click on the graph.


Downstream on left, upstream on right

Our camera is experiencing technical difficulties


Bridge Profile and River Bottom Cross-Section Survey (CSS)
(reference: looking from upstream to downstream)

  Graph Parameters




Graph Values
(mouse over graph)
Data Format:
Distance Left Shore to Right Shore
Bridge and River Bottom Elevations