US Bridges

US0051 over Carpenter Branch

Fair

Tangipahoa Parish, Louisiana · 0.1 M N of LA 10 · Structure no. 625300170600151

Built
1956
69 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
47 ft
7 main spans
Daily traffic
2,199
2021 count
Owner
State
State Highway Agency

About this bridge

US0051 over Carpenter Branch is a concrete culvert carrying US0051 over Carpenter Branch in Tangipahoa Parish, Louisiana. It was built in 1956, so it is 69 years old, older than the Louisiana average of 43 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 2,199 vehicles a day, roughly 12% of them trucks, projected to reach 2,418 by 2041. The structure is 47 ft (14.3 m) long and 48 ft wide.

CarriesUS0051
CrossesCarpenter Branch
Location0.1 M N of LA 10
RouteU.S. Route 51
Coordinates30.82702, -90.5109
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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.8 US tons
Inventory rating23.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans7
Design loadH 15
Structure length47 ft (14.3 m)
Longest span6 ft (1.8 m)
Deck width48 ft (14.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,199 (2021)
Projected traffic2,418 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 US0051 over Carpenter Branch built?

It was built in 1956, making it 69 years old in 2025.

What condition is US0051 over Carpenter Branch 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 April 2023.

How much traffic does US0051 over Carpenter Branch carry?

About 2,199 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is US0051 over Carpenter Branch?

The structure is 47 ft (14.3 m) long with a longest span of 6 ft (1.8 m) and a deck 48 ft wide.

Who owns US0051 over Carpenter Branch?

It is owned by the State Highway Agency.