US Bridges

SR 15 over Unnamed Creek

Fair

Webster County, Mississippi · 0.6 MI N Natchez Trace · Structure no. 310001507823580

Built
1938
87 years old, rebuilt 1996
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
2,100
2023 count
Owner
State
State Highway Agency

About this bridge

SR 15 over Unnamed Creek is a concrete culvert carrying SR 15 over Unnamed Creek in Webster County, Mississippi. It was built in 1938 and reconstructed in 1996, so it is 87 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 2,100 vehicles a day, roughly 14% of them trucks, projected to reach 2,100 by 2043. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 8.7 mi (14 km).

CarriesSR 15
CrossesUnnamed Creek
Location0.6 MI N Natchez Trace
RouteState Highway 15
Coordinates33.67224, -89.05858
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.8 US tons
Inventory rating50.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,100 (2023)
Projected traffic2,100 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 15 over Unnamed Creek built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1996.

What condition is SR 15 over Unnamed 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 August 2023.

How much traffic does SR 15 over Unnamed Creek carry?

About 2,100 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 15 over Unnamed Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns SR 15 over Unnamed Creek?

It is owned by the State Highway Agency.