US Bridges

SH 124 over Lnva Canal

Fair

Jefferson County, Texas · 1.5 MI NE of FM 365 · Structure no. 201240036803041

Built
1968
57 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
49 ft
6 main spans
Daily traffic
5,978
2022 count
Owner
State
State Highway Agency

About this bridge

SH 124 over Lnva Canal is a concrete culvert carrying SH 124 over Lnva Canal in Jefferson County, Texas. It was built in 1968, so it is 57 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 5,978 vehicles a day, roughly 9% of them trucks, projected to reach 11,119 by 2042. The structure is 49 ft (14.9 m) long and 62 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSH 124
CrossesLnva Canal
Location1.5 MI NE of FM 365
RouteState Highway 124
CountyJefferson County
StateTexas
Coordinates29.94476, -94.23739
Functional classRural 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length49 ft (14.9 m)
Longest span7 ft (2.1 m)
Deck width62 ft (18.9 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,978 (2022)
Projected traffic11,119 by 2042
Trucks9%
Lanes on structure2
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 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 SH 124 over Lnva Canal built?

It was built in 1968, making it 57 years old in 2025.

What condition is SH 124 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 May 2024.

How much traffic does SH 124 over Lnva Canal carry?

About 5,978 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is SH 124 over Lnva Canal?

The structure is 49 ft (14.9 m) long with a longest span of 7 ft (2.1 m) and a deck 62 ft wide.

Who owns SH 124 over Lnva Canal?

It is owned by the State Highway Agency.