US Bridges

FM 364 over Willow Marsh Bayou

Fair

Jefferson County, Texas · 0.7 MI N of IH 10 · Structure no. 201240078601011

Built
2005
20 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
105 ft
3 main spans
Daily traffic
6,677
2022 count
Owner
State
State Highway Agency

About this bridge

FM 364 over Willow Marsh Bayou is a prestressed concrete stringer/multi-beam or girder carrying FM 364 over Willow Marsh Bayou in Jefferson County, Texas. It was built in 2005, so it is 20 years old, younger than the Texas average of 44.4 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.

It carries about 6,677 vehicles a day, roughly 6% of them trucks, projected to reach 6,820 by 2033. The structure is 105 ft (32 m) long and 83 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesFM 364
CrossesWillow Marsh Bayou
Location0.7 MI N of IH 10
RouteState Highway 364
CountyJefferson County
StateTexas
Coordinates30.01836, -94.18926
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length105 ft (32 m)
Longest span35 ft (10.7 m)
Deck width83 ft (25.3 m)
Roadway width81 ft (24.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,677 (2022)
Projected traffic6,820 by 2033
Trucks6%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
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 FM 364 over Willow Marsh Bayou built?

It was built in 2005, making it 20 years old in 2025.

What condition is FM 364 over Willow Marsh Bayou 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 June 2024.

How much traffic does FM 364 over Willow Marsh Bayou carry?

About 6,677 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is FM 364 over Willow Marsh Bayou?

The structure is 105 ft (32 m) long with a longest span of 35 ft (10.7 m) and a deck 83 ft wide.

Who owns FM 364 over Willow Marsh Bayou?

It is owned by the State Highway Agency.