US Bridges

LA0946 over Comite River

Good

East Baton Rouge Parish, Louisiana · LA 946 Approx. 2.4 Miles · Structure no. 611700000610256

Built
2009
16 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
450 ft
6 main spans
Daily traffic
11,578
2021 count
Owner
State
State Highway Agency

About this bridge

LA0946 over Comite River is a prestressed concrete continuous stringer/multi-beam or girder carrying LA0946 over Comite River in East Baton Rouge Parish, Louisiana. It was built in 2009, so it is 16 years old, younger than the Louisiana average of 43 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 11,578 vehicles a day, roughly 7% of them trucks, projected to reach 12,735 by 2041. The structure is 450 ft (137.2 m) long and 84 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesLA0946
CrossesComite River
LocationLA 946 Approx. 2.4 Miles
RouteState Highway 946
Coordinates30.51312, -91.07486
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating38.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length450 ft (137.2 m)
Longest span75 ft (22.9 m)
Deck width84 ft (25.7 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,578 (2021)
Projected traffic12,735 by 2041
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA0946 over Comite River built?

It was built in 2009, making it 16 years old in 2025.

What condition is LA0946 over Comite River 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 July 2024.

How much traffic does LA0946 over Comite River carry?

About 11,578 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is LA0946 over Comite River?

The structure is 450 ft (137.2 m) long with a longest span of 75 ft (22.9 m) and a deck 84 ft wide.

Who owns LA0946 over Comite River?

It is owned by the State Highway Agency.