US Bridges

L Williams RD over Unamed Creek

PoorClosed to traffic

East Feliciana Parish, Louisiana · 0.7 M N of LA 961 · Structure no. 611930559905421

Built
1975
50 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
47 ft
3 main spans
Daily traffic
304
2022 count
Owner
County
County Highway Agency

About this bridge

L Williams RD over Unamed Creek is a wood or timber stringer/multi-beam or girder carrying L Williams RD over Unamed Creek in East Feliciana Parish, Louisiana. It was built in 1975, so it is 50 years old, older 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 1 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. Its operating status is: closed to all traffic.

It carries about 304 vehicles a day, projected to reach 334 by 2042. The structure is 47 ft (14.3 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesL Williams RD
CrossesUnamed Creek
Location0.7 M N of LA 961
RouteCounty Highway 0
Coordinates30.93096, -90.90225
Functional classRural 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure1 Imminent FailureMajor deterioration or section loss present in critical structural components. Bridge is closed to traffic but corrective action may put it back in light service.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourUnknown foundation; not evaluated for scour
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25 US tons
Inventory rating18.7 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 10
Structure length47 ft (14.3 m)
Longest span15 ft (4.6 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic304 (2022)
Projected traffic334 by 2042
Trucks—
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$187,000
NavigationNo navigation control on waterway

Frequently asked questions

When was L Williams RD over Unamed Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is L Williams RD over Unamed Creek 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 L Williams RD over Unamed Creek carry?

About 304 vehicles per day (2022 count).

How long is L Williams RD over Unamed Creek?

The structure is 47 ft (14.3 m) long with a longest span of 15 ft (4.6 m) and a deck 20 ft wide.

Who owns L Williams RD over Unamed Creek?

It is owned by the County Highway Agency.