US Bridges

FM 364 over Lnva Main Canal

Good

Jefferson County, Texas · 0.5 MI S of SH 105 · Structure no. 201240078601005

Built
1973
52 years old, rebuilt 1996
Condition
Good
inspected May 2024
Type
Slab
Concrete
Length
210 ft
8 main spans
Daily traffic
20,069
2024 count
Owner
State
State Highway Agency

About this bridge

FM 364 over Lnva Main Canal is a concrete slab carrying FM 364 over Lnva Main Canal in Jefferson County, Texas. It was built in 1973 and reconstructed in 1996, so it is 52 years old, older than the Texas average of 44.4 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 20,069 vehicles a day, roughly 4% of them trucks, projected to reach 28,256 by 2042. The structure is 210 ft (64 m) long and 86 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM 364
CrossesLnva Main Canal
Location0.5 MI S of SH 105
RouteState Highway 364
StateTexas
Coordinates30.12596, -94.19036
Functional classUrban 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 protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating48 US tons
Inventory rating29 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadOther
Structure length210 ft (64 m)
Longest span26 ft (7.9 m)
Deck width86 ft (26.3 m)
Roadway width85 ft (25.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,069 (2024)
Projected traffic28,256 by 2042
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 364 over Lnva Main Canal built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 1996.

What condition is FM 364 over Lnva Main Canal 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 May 2024.

How much traffic does FM 364 over Lnva Main Canal carry?

About 20,069 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is FM 364 over Lnva Main Canal?

The structure is 210 ft (64 m) long with a longest span of 26 ft (7.9 m) and a deck 86 ft wide.

Who owns FM 364 over Lnva Main Canal?

It is owned by the State Highway Agency.