US Bridges

Sittig St. over Coulee

Poor

Acadia Parish, Louisiana · 0.28 Mi. East of LA 755 · Structure no. 030100000030412

Built
1990
35 years old
Condition
Poor
inspected July 2024
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
2,016
2021 count
Owner
County
County Highway Agency

About this bridge

Sittig St. over Coulee is a concrete slab carrying Sittig St. over Coulee in Acadia Parish, Louisiana. It was built in 1990, so it is 35 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,016 vehicles a day, projected to reach 2,217 by 2041. The structure is 76 ft (23.2 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSittig St.
CrossesCoulee
Location0.28 Mi. East of LA 755
RouteCounty Highway 0
Coordinates30.48003, -92.4268
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,016 (2021)
Projected traffic2,217 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sittig St. over Coulee built?

It was built in 1990, making it 35 years old in 2025.

What condition is Sittig St. over Coulee in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Sittig St. over Coulee carry?

About 2,016 vehicles per day (2021 count).

How long is Sittig St. over Coulee?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 22 ft wide.

Who owns Sittig St. over Coulee?

It is owned by the County Highway Agency.