US Bridges

FM 158 over SH 6

Fair

Brazos County, Texas · 2.1 MI SE of US 190/SH 21 · Structure no. 170210004912089

Built
1971
54 years old, rebuilt 1999
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
340 ft
2 main spans
Daily traffic
32,960
2013 count
Owner
State
State Highway Agency

About this bridge

FM 158 over SH 6 is a prestressed concrete stringer/multi-beam or girder carrying FM 158 over SH 6 in Brazos County, Texas. It was built in 1971 and reconstructed in 1999, so it is 54 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 32,960 vehicles a day, roughly 5% of them trucks, projected to reach 46,150 by 2033. The structure is 340 ft (103.6 m) long and 99 ft wide.

CarriesFM 158
CrossesSH 6
Location2.1 MI SE of US 190/SH 21
RouteState Highway 158
StateTexas
Coordinates30.67209, -96.33807
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating22 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadH 20
Structure length340 ft (103.6 m)
Longest span110 ft (33.5 m)
Deck width99 ft (30.2 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,960 (2013)
Projected traffic46,150 by 2033
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM 158 over SH 6 built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1999.

What condition is FM 158 over SH 6 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 February 2023.

How much traffic does FM 158 over SH 6 carry?

About 32,960 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is FM 158 over SH 6?

The structure is 340 ft (103.6 m) long with a longest span of 110 ft (33.5 m) and a deck 99 ft wide.

Who owns FM 158 over SH 6?

It is owned by the State Highway Agency.