US Bridges

FM 1770 over Elm Creek

Good

Runnels County, Texas · 5.84 MI E of US 83 · Structure no. 072000173101003

Built
1955
70 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
150 ft
6 main spans
Daily traffic
100
2023 count
Owner
State
State Highway Agency

About this bridge

FM 1770 over Elm Creek is a concrete slab carrying FM 1770 over Elm Creek in Runnels County, Texas. It was built in 1955, so it is 70 years old, older 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 100 vehicles a day, roughly 35% of them trucks, projected to reach 220 by 2033. The structure is 150 ft (45.7 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesFM 1770
CrossesElm Creek
Location5.84 MI E of US 83
RouteState Highway 1770
StateTexas
Coordinates31.97959, -99.86689
Functional classRural Minor 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 protection7 GoodSome minor problems.
Last inspectionMarch 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 rating59 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadOther
Structure length150 ft (45.7 m)
Longest span25 ft (7.6 m)
Deck width25 ft (7.7 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic220 by 2033
Trucks35%
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 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 FM 1770 over Elm Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is FM 1770 over Elm 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 March 2024.

How much traffic does FM 1770 over Elm Creek carry?

About 100 vehicles per day (2023 count), of which roughly 35% are trucks.

How long is FM 1770 over Elm Creek?

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

Who owns FM 1770 over Elm Creek?

It is owned by the State Highway Agency.