US Bridges

Wpa Road over Black Creek

Fair

Lamar County, Mississippi · Sec 22 T 4N R15W B · Structure no. SA3700000000095

Built
1979
46 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
280 ft
7 main spans
Daily traffic
450
2024 count
Owner
County
County Highway Agency

About this bridge

Wpa Road over Black Creek is a prestressed concrete stringer/multi-beam or girder carrying Wpa Road over Black Creek in Lamar County, Mississippi. It was built in 1979, so it is 46 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 450 vehicles a day, roughly 28% of them trucks, projected to reach 625 by 2046. The structure is 280 ft (85.3 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWpa Road
CrossesBlack Creek
LocationSec 22 T 4N R15W B
RouteCounty Highway 137
Coordinates31.29056, -89.50056
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.8 US tons
Inventory rating33.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 15
Structure length280 ft (85.3 m)
Longest span40 ft (12.2 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2024)
Projected traffic625 by 2046
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Wpa Road over Black Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Wpa Road over Black Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does Wpa Road over Black Creek carry?

About 450 vehicles per day (2024 count), of which roughly 28% are trucks.

How long is Wpa Road over Black Creek?

The structure is 280 ft (85.3 m) long with a longest span of 40 ft (12.2 m) and a deck 29 ft wide.

Who owns Wpa Road over Black Creek?

It is owned by the County Highway Agency.