US Bridges

Otis/Wilie Mathews over Darling Creek

Good

St. Helena Parish, Louisiana · 2.5 Mi. South of LA 10 · Structure no. 624630520904911

Built
1999
26 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
295 ft
6 main spans
Daily traffic
200
1999 count
Owner
County
County Highway Agency

About this bridge

Otis/Wilie Mathews over Darling Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Otis/Wilie Mathews over Darling Creek in St. Helena Parish, Louisiana. It was built in 1999, so it is 26 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 200 vehicles a day, projected to reach 220 by 2019. The structure is 295 ft (89.9 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesOtis/Wilie Mathews
CrossesDarling Creek
Location2.5 Mi. South of LA 10
RouteCounty Highway 0
Coordinates30.86706, -90.81685
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating38.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length295 ft (89.9 m)
Longest span49 ft (14.9 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (1999)
Projected traffic220 by 2019
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Otis/Wilie Mathews over Darling Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Otis/Wilie Mathews over Darling Creek 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 March 2024.

How much traffic does Otis/Wilie Mathews over Darling Creek carry?

About 200 vehicles per day (1999 count).

How long is Otis/Wilie Mathews over Darling Creek?

The structure is 295 ft (89.9 m) long with a longest span of 49 ft (14.9 m) and a deck 31 ft wide.

Who owns Otis/Wilie Mathews over Darling Creek?

It is owned by the County Highway Agency.