US Bridges

FM 365 over Lnva Canal

Fair

Jefferson County, Texas · 1.1 MI S of US 90 · Structure no. 201240093202001

Built
1950
75 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
150 ft
6 main spans
Daily traffic
2,853
2024 count
Owner
State
State Highway Agency

About this bridge

FM 365 over Lnva Canal is a concrete slab carrying FM 365 over Lnva Canal in Jefferson County, Texas. It was built in 1950, so it is 75 years old, older 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 2,853 vehicles a day, roughly 21% of them trucks, projected to reach 3,230 by 2033. The structure is 150 ft (45.7 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFM 365
CrossesLnva Canal
Location1.1 MI S of US 90
RouteState Highway 365
CountyJefferson County
StateTexas
Coordinates30.0214, -94.40794
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating28 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length150 ft (45.7 m)
Longest span25 ft (7.6 m)
Deck width25 ft (7.7 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,853 (2024)
Projected traffic3,230 by 2033
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$9,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 365 over Lnva Canal built?

It was built in 1950, making it 75 years old in 2025.

What condition is FM 365 over Lnva Canal 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 365 over Lnva Canal carry?

About 2,853 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is FM 365 over Lnva Canal?

The structure is 150 ft (45.7 m) long with a longest span of 25 ft (7.6 m) and a deck 25 ft wide.

Who owns FM 365 over Lnva Canal?

It is owned by the State Highway Agency.