US Bridges

FM 1770 over Draw

Good

Runnels County, Texas · 8.54 MI E of US 83 · Structure no. 072000173101004

Built
1940
85 years old, rebuilt 1955
Condition
Good
inspected March 2024
Type
Culvert
Masonry
Length
24 ft
2 main spans
Daily traffic
154
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1770 over Draw is a masonry culvert carrying FM 1770 over Draw in Runnels County, Texas. It was built in 1940 and reconstructed in 1955, so it is 85 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 154 vehicles a day, roughly 35% of them trucks, projected to reach 220 by 2033. The structure is 24 ft (7.3 m) long and 39 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM 1770
CrossesDraw
Location8.54 MI E of US 83
RouteState Highway 1770
StateTexas
Coordinates31.98823, -99.82298
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 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 geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialMasonry
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width39 ft (12 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic154 (2020)
Projected traffic220 by 2033
Trucks35%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Draw built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1955.

What condition is FM 1770 over Draw 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 Draw carry?

About 154 vehicles per day (2020 count), of which roughly 35% are trucks.

How long is FM 1770 over Draw?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 39 ft wide.

Who owns FM 1770 over Draw?

It is owned by the State Highway Agency.