US Bridges

SR 15 over Thompson Creek Trib

Good

Perry County, Mississippi · 1.5 MI N SR 42 East · Structure no. 310001505605520

Built
1940
85 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
37 ft
3 main spans
Daily traffic
3,400
2023 count
Owner
State
State Highway Agency

About this bridge

SR 15 over Thompson Creek Trib is a concrete culvert carrying SR 15 over Thompson Creek Trib in Perry County, Mississippi. It was built in 1940, so it is 85 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 3,400 vehicles a day, roughly 14% of them trucks, projected to reach 3,400 by 2043. The structure is 37 ft (11.3 m) long. If it were closed, the detour would be 39.8 mi (64 km).

CarriesSR 15
CrossesThompson Creek Trib
Location1.5 MI N SR 42 East
RouteState Highway 15
Coordinates31.37517, -88.93597
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating30.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length37 ft (11.3 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,400 (2023)
Projected traffic3,400 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$280 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 15 over Thompson Creek Trib built?

It was built in 1940, making it 85 years old in 2025.

What condition is SR 15 over Thompson Creek Trib 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 June 2024.

How much traffic does SR 15 over Thompson Creek Trib carry?

About 3,400 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 15 over Thompson Creek Trib?

The structure is 37 ft (11.3 m) long with a longest span of 11 ft (3.4 m).

Who owns SR 15 over Thompson Creek Trib?

It is owned by the State Highway Agency.