US Bridges

US 51 over Unnamed Stream

Fair

Copiah County, Mississippi · 4.1 MI S SR 28 · Structure no. 210005101506000

Built
1952
73 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
2,100
2023 count
Owner
State
State Highway Agency

About this bridge

US 51 over Unnamed Stream is a concrete culvert carrying US 51 over Unnamed Stream in Copiah County, Mississippi. It was built in 1952, so it is 73 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 8% of them trucks, projected to reach 2,100 by 2043. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesUS 51
CrossesUnnamed Stream
Location4.1 MI S SR 28
RouteU.S. Route 51
CountyCopiah County
StateMississippi
Coordinates31.81726, -90.40952
Functional classRural Major Collector

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 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 rating62.5 US tons
Inventory rating37.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length40 ft (12.2 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
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 US 51 over Unnamed Stream built?

It was built in 1952, making it 73 years old in 2025.

What condition is US 51 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 August 2024.

How much traffic does US 51 over Unnamed Stream carry?

About 2,100 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US 51 over Unnamed Stream?

The structure is 40 ft (12.2 m) long with a longest span of 12 ft (3.7 m).

Who owns US 51 over Unnamed Stream?

It is owned by the State Highway Agency.