US Bridges

LA0436 over Muster Ground C

FairPosted for load

Washington Parish, Louisiana · 0.9 M W of LA 21 · Structure no. 625908590810671

Built
1958
67 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
97 ft
5 main spans
Daily traffic
1,306
2021 count
Owner
State
State Highway Agency

About this bridge

LA0436 over Muster Ground C is a wood or timber stringer/multi-beam or girder carrying LA0436 over Muster Ground C in Washington Parish, Louisiana. It was built in 1958, so it is 67 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 6 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 1,306 vehicles a day, roughly 13% of them trucks, projected to reach 1,436 by 2041. The structure is 97 ft (29.6 m) long and 28 ft wide.

CarriesLA0436
CrossesMuster Ground C
Location0.9 M W of LA 21
RouteState Highway 436
Coordinates30.88613, -89.857
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating27 US tons
Inventory rating18 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadH 10
Structure length97 ft (29.6 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.4 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,306 (2021)
Projected traffic1,436 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 LA0436 over Muster Ground C built?

It was built in 1958, making it 67 years old in 2025.

What condition is LA0436 over Muster Ground C 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 May 2024.

How much traffic does LA0436 over Muster Ground C carry?

About 1,306 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is LA0436 over Muster Ground C?

The structure is 97 ft (29.6 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns LA0436 over Muster Ground C?

It is owned by the State Highway Agency.