US Bridges

FM 359 over Irons Creek

Good

Waller County, Texas · 0.5 MI N of FM 1887 · Structure no. 122370054301027

Built
1992
33 years old
Condition
Good
inspected August 2024
Type
Other
Prestressed Concrete
Length
120 ft
4 main spans
Daily traffic
3,995
2023 count
Owner
State
State Highway Agency

About this bridge

FM 359 over Irons Creek is a prestressed concrete other carrying FM 359 over Irons Creek in Waller County, Texas. It was built in 1992, so it is 33 years old, younger 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 3,995 vehicles a day, roughly 12% of them trucks, projected to reach 4,690 by 2033. The structure is 120 ft (36.6 m) long and 44 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesFM 359
CrossesIrons Creek
Location0.5 MI N of FM 1887
RouteState Highway 359
StateTexas
Coordinates29.95807, -96.04025
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeOther
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span30 ft (9.1 m)
Deck width44 ft (13.5 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,995 (2023)
Projected traffic4,690 by 2033
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 359 over Irons Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is FM 359 over Irons Creek 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 August 2024.

How much traffic does FM 359 over Irons Creek carry?

About 3,995 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is FM 359 over Irons Creek?

The structure is 120 ft (36.6 m) long with a longest span of 30 ft (9.1 m) and a deck 44 ft wide.

Who owns FM 359 over Irons Creek?

It is owned by the State Highway Agency.