US Bridges

Sylvia Rd. over Coulee

FairPosted for load

Lafayette Parish, Louisiana · 0.40 MI S of US 90 · Structure no. 032830136920501

Built
1989
36 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
38 ft
2 main spans
Daily traffic
53
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sylvia Rd. over Coulee is a concrete slab carrying Sylvia Rd. over Coulee in Lafayette Parish, Louisiana. It was built in 1989, so it is 36 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 53 vehicles a day, projected to reach 58 by 2040. The structure is 38 ft (11.6 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSylvia Rd.
CrossesCoulee
Location0.40 MI S of US 90
RouteCounty Highway 0
CountyLafayette Parish
StateLouisiana
Coordinates30.22695, -92.08403
Functional classRural Local

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.
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.6 US tons
Inventory rating50 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 width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53 (2020)
Projected traffic58 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Sylvia Rd. over Coulee built?

It was built in 1989, making it 36 years old in 2025.

What condition is Sylvia Rd. over Coulee 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 October 2023.

How much traffic does Sylvia Rd. over Coulee carry?

About 53 vehicles per day (2020 count).

How long is Sylvia Rd. over Coulee?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Sylvia Rd. over Coulee?

It is owned by the City or Municipal Highway Agency.