US Bridges

FM 8 over Armstrong Creek

Good

Erath County, Texas · 5.40 MI E of Eastland C/L · Structure no. 020730055002035

Built
2007
18 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
160 ft
1 main span
Daily traffic
2,435
2020 count
Owner
State
State Highway Agency

About this bridge

FM 8 over Armstrong Creek is a prestressed concrete stringer/multi-beam or girder carrying FM 8 over Armstrong Creek in Erath County, Texas. It was built in 2007, so it is 18 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 2,435 vehicles a day, roughly 10% of them trucks, projected to reach 2,790 by 2033. The structure is 160 ft (48.8 m) long and 42 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesFM 8
CrossesArmstrong Creek
Location5.40 MI E of Eastland C/L
RouteState Highway 8
StateTexas
Coordinates32.25204, -98.44806
Functional classRural Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
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 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 rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span85 ft (25.9 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,435 (2020)
Projected traffic2,790 by 2033
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 8 over Armstrong Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is FM 8 over Armstrong 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 8 over Armstrong Creek carry?

About 2,435 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is FM 8 over Armstrong Creek?

The structure is 160 ft (48.8 m) long with a longest span of 85 ft (25.9 m) and a deck 42 ft wide.

Who owns FM 8 over Armstrong Creek?

It is owned by the State Highway Agency.