US Bridges

SR 13 over Unnamed Stream

Fair

Jefferson Davis County, Mississippi · 3.4 MI N US 84 · Structure no. 310001303307740

Built
1940
85 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
45 ft
3 main spans
Daily traffic
2,800
2023 count
Owner
State
State Highway Agency

About this bridge

SR 13 over Unnamed Stream is a concrete culvert carrying SR 13 over Unnamed Stream in Jefferson Davis 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 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 2,800 vehicles a day, roughly 20% of them trucks, projected to reach 2,800 by 2043. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 34.8 mi (56 km).

Location

Open in Google Maps
CarriesSR 13
CrossesUnnamed Stream
Location3.4 MI N US 84
RouteState Highway 13
CountyJefferson Davis County
StateMississippi
Coordinates31.65412, -89.85911
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
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 rating83.8 US tons
Inventory rating50.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length45 ft (13.7 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 traffic2,800 (2023)
Projected traffic2,800 by 2043
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$553 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 13 over Unnamed Stream built?

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

What condition is SR 13 over Unnamed Stream 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 October 2023.

How much traffic does SR 13 over Unnamed Stream carry?

About 2,800 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is SR 13 over Unnamed Stream?

The structure is 45 ft (13.7 m) long with a longest span of 12 ft (3.7 m).

Who owns SR 13 over Unnamed Stream?

It is owned by the State Highway Agency.