US Bridges

Woodmill RD over Trib to Tanyard Creek

FairPosted for load

Webster Parish, Louisiana · 0.1 MI W of HWY 7 · Structure no. 046032272931731

Built
1978
47 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
38 ft
2 main spans
Daily traffic
247
2020 count
Owner
County
County Highway Agency

About this bridge

Woodmill RD over Trib to Tanyard Creek is a wood or timber stringer/multi-beam or girder carrying Woodmill RD over Trib to Tanyard Creek in Webster Parish, Louisiana. It was built in 1978, so it is 47 years old, older 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 247 vehicles a day, projected to reach 271 by 2040. The structure is 38 ft (11.6 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWoodmill RD
CrossesTrib to Tanyard Creek
Location0.1 MI W of HWY 7
RouteCounty Highway 0
Coordinates32.45381, -93.28782
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating28 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 20
Structure length38 ft (11.6 m)
Longest span19 ft (5.8 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic247 (2020)
Projected traffic271 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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$168,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Woodmill RD over Trib to Tanyard Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is Woodmill RD over Trib to Tanyard Creek 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 July 2023.

How much traffic does Woodmill RD over Trib to Tanyard Creek carry?

About 247 vehicles per day (2020 count).

How long is Woodmill RD over Trib to Tanyard Creek?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.

Who owns Woodmill RD over Trib to Tanyard Creek?

It is owned by the County Highway Agency.