US Bridges

CO RD 83 over Big Black River Canal

Good

Webster County, Mississippi · Sec 28 T19N R 9E B · Structure no. SA7800000000034

Built
1984
41 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
400 ft
9 main spans
Daily traffic
50
2015 count
Owner
County
County Highway Agency

About this bridge

CO RD 83 over Big Black River Canal is a prestressed concrete stringer/multi-beam or girder carrying CO RD 83 over Big Black River Canal in Webster County, Mississippi. It was built in 1984, so it is 41 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 75 by 2035. The structure is 400 ft (121.9 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCO RD 83
CrossesBig Black River Canal
LocationSec 28 T19N R 9E B
RouteCounty Highway 83
Coordinates33.47672, -89.35736
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating30.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 15
Structure length400 ft (121.9 m)
Longest span80 ft (24.4 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2015)
Projected traffic75 by 2035
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD 83 over Big Black River Canal built?

It was built in 1984, making it 41 years old in 2025.

What condition is CO RD 83 over Big Black River Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does CO RD 83 over Big Black River Canal carry?

About 50 vehicles per day (2015 count).

How long is CO RD 83 over Big Black River Canal?

The structure is 400 ft (121.9 m) long with a longest span of 80 ft (24.4 m) and a deck 29 ft wide.

Who owns CO RD 83 over Big Black River Canal?

It is owned by the County Highway Agency.