US Bridges

FM 985 over Onion Creek

Good

Ellis County, Texas · 3.6 MI SE of SH 34 · Structure no. 180710121201002

Built
1972
53 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
280 ft
7 main spans
Daily traffic
293
2023 count
Owner
State
State Highway Agency

About this bridge

FM 985 over Onion Creek is a concrete stringer/multi-beam or girder carrying FM 985 over Onion Creek in Ellis County, Texas. It was built in 1972, so it is 53 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 293 vehicles a day, roughly 6% of them trucks, projected to reach 630 by 2033. The structure is 280 ft (85.3 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM 985
CrossesOnion Creek
Location3.6 MI SE of SH 34
RouteState Highway 985
StateTexas
Coordinates32.22739, -96.65372
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadH 15
Structure length280 ft (85.3 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic293 (2023)
Projected traffic630 by 2033
Trucks6%
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 985 over Onion Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is FM 985 over Onion 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 November 2023.

How much traffic does FM 985 over Onion Creek carry?

About 293 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is FM 985 over Onion Creek?

The structure is 280 ft (85.3 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns FM 985 over Onion Creek?

It is owned by the State Highway Agency.