US Bridges

FM 365 over Main B Canal

Fair

Jefferson County, Texas · 0.4 MI SW of SH 347 · Structure no. 201240093201014

Built
1956
69 years old, rebuilt 2001
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
32 ft
4 main spans
Daily traffic
20,741
2024 count
Owner
State
State Highway Agency

About this bridge

FM 365 over Main B Canal is a concrete culvert carrying FM 365 over Main B Canal in Jefferson County, Texas. It was built in 1956 and reconstructed in 2001, so it is 69 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 20,741 vehicles a day, roughly 3% of them trucks, projected to reach 24,510 by 2033. The structure is 32 ft (9.8 m) long and 98 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFM 365
CrossesMain B Canal
Location0.4 MI SW of SH 347
RouteState Highway 365
CountyJefferson County
StateTexas
Coordinates29.96119, -93.98025
Functional classUrban Other Principal 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span7 ft (2.1 m)
Deck width98 ft (30 m)
Roadway width96 ft (29.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,741 (2024)
Projected traffic24,510 by 2033
Trucks3%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 365 over Main B Canal built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2001.

What condition is FM 365 over Main B 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 July 2024.

How much traffic does FM 365 over Main B Canal carry?

About 20,741 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is FM 365 over Main B Canal?

The structure is 32 ft (9.8 m) long with a longest span of 7 ft (2.1 m) and a deck 98 ft wide.

Who owns FM 365 over Main B Canal?

It is owned by the State Highway Agency.