US Bridges

US 285 over Middle Fork Big Canyon

Fair

Pecos County, Texas · 5.8 MI N of RM 2400 · Structure no. 061860029303017

Built
1956
69 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
357 ft
14 main spans
Daily traffic
688
2022 count
Owner
State
State Highway Agency

About this bridge

US 285 over Middle Fork Big Canyon is a concrete slab carrying US 285 over Middle Fork Big Canyon in Pecos County, Texas. It was built in 1956, so it is 69 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 5 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 688 vehicles a day, roughly 19% of them trucks, projected to reach 1,530 by 2033. The structure is 357 ft (108.8 m) long and 31 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

CarriesUS 285
CrossesMiddle Fork Big Canyon
Location5.8 MI N of RM 2400
RouteU.S. Route 285
StateTexas
Coordinates30.41773, -102.44778
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans14
Design loadOther
Structure length357 ft (108.8 m)
Longest span26 ft (7.9 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic688 (2022)
Projected traffic1,530 by 2033
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 285 over Middle Fork Big Canyon built?

It was built in 1956, making it 69 years old in 2025.

What condition is US 285 over Middle Fork Big Canyon 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 September 2023.

How much traffic does US 285 over Middle Fork Big Canyon carry?

About 688 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is US 285 over Middle Fork Big Canyon?

The structure is 357 ft (108.8 m) long with a longest span of 26 ft (7.9 m) and a deck 31 ft wide.

Who owns US 285 over Middle Fork Big Canyon?

It is owned by the State Highway Agency.