US Bridges

SH 124 over Willow Marsh Bayou

Fair

Jefferson County, Texas · 3.3 MI SW of US 69 · Structure no. 201240036804042

Built
1972
53 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
150 ft
6 main spans
Daily traffic
4,334
2022 count
Owner
State
State Highway Agency

About this bridge

SH 124 over Willow Marsh Bayou is a concrete slab carrying SH 124 over Willow Marsh Bayou in Jefferson County, Texas. It was built in 1972, so it is 53 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 4,334 vehicles a day, roughly 11% of them trucks, projected to reach 6,649 by 2042. The structure is 150 ft (45.7 m) long and 51 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSH 124
CrossesWillow Marsh Bayou
Location3.3 MI SW of US 69
RouteState Highway 124
StateTexas
Coordinates30.01194, -94.174
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length150 ft (45.7 m)
Longest span25 ft (7.6 m)
Deck width51 ft (15.6 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,334 (2022)
Projected traffic6,649 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Willow Marsh Bayou built?

It was built in 1972, making it 53 years old in 2025.

What condition is SH 124 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 May 2024.

How much traffic does SH 124 over Willow Marsh Bayou carry?

About 4,334 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is SH 124 over Willow Marsh Bayou?

The structure is 150 ft (45.7 m) long with a longest span of 25 ft (7.6 m) and a deck 51 ft wide.

Who owns SH 124 over Willow Marsh Bayou?

It is owned by the State Highway Agency.