US Bridges

SR 145 over Black Creek

PoorPosted for load

Clarke County, Mississippi · 2.6 MI S SR 18 · Structure no. 210004501204250

Built
1937
88 years old
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
2 main spans
Daily traffic
800
2023 count
Owner
State
State Highway Agency

About this bridge

SR 145 over Black Creek is a steel stringer/multi-beam or girder carrying SR 145 over Black Creek in Clarke County, Mississippi. It was built in 1937, so it is 88 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 800 vehicles a day, roughly 11% of them trucks, projected to reach 800 by 2043. The structure is 40 ft (12.2 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR 145
CrossesBlack Creek
Location2.6 MI S SR 18
RouteState Highway 145
Coordinates31.96453, -88.72232
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length40 ft (12.2 m)
Longest span20 ft (6.1 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2023)
Projected traffic800 by 2043
Trucks11%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$506 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 145 over Black Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is SR 145 over Black Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does SR 145 over Black Creek carry?

About 800 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is SR 145 over Black Creek?

The structure is 40 ft (12.2 m) long with a longest span of 20 ft (6.1 m) and a deck 27 ft wide.

Who owns SR 145 over Black Creek?

It is owned by the State Highway Agency.