US Bridges

LA0913 over Norris Springs

Fair

Catahoula Parish, Louisiana · 0.78 M S of LA 915 · Structure no. 581301790102241

Built
1983
42 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete
Length
38 ft
2 main spans
Daily traffic
514
2021 count
Owner
State
State Highway Agency

About this bridge

LA0913 over Norris Springs is a concrete slab carrying LA0913 over Norris Springs in Catahoula Parish, Louisiana. It was built in 1983, so it is 42 years old, younger 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 514 vehicles a day, roughly 15% of them trucks, projected to reach 565 by 2041. The structure is 38 ft (11.6 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesLA0913
CrossesNorris Springs
Location0.78 M S of LA 915
RouteState Highway 913
Coordinates31.85834, -91.7148
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span19 ft (5.8 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic514 (2021)
Projected traffic565 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 LA0913 over Norris Springs built?

It was built in 1983, making it 42 years old in 2025.

What condition is LA0913 over Norris Springs 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 December 2024.

How much traffic does LA0913 over Norris Springs carry?

About 514 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0913 over Norris Springs?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 35 ft wide.

Who owns LA0913 over Norris Springs?

It is owned by the State Highway Agency.