US Bridges

SH 20 over Arroyo Diablo

Fair

Hudspeth County, Texas · 0.10 MI W of FM 192 · Structure no. 241160000204012

Built
1926
99 years old, rebuilt 1936
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
280 ft
14 main spans
Daily traffic
294
2020 count
Owner
State
State Highway Agency

About this bridge

SH 20 over Arroyo Diablo is a concrete slab carrying SH 20 over Arroyo Diablo in Hudspeth County, Texas. It was built in 1926 and reconstructed in 1936, so it is 99 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 6 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 294 vehicles a day, roughly 5% of them trucks, projected to reach 450 by 2033. The structure is 280 ft (85.3 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSH 20
CrossesArroyo Diablo
Location0.10 MI W of FM 192
RouteState Highway 20
CountyHudspeth County
StateTexas
Coordinates31.24378, -105.79371
Functional classRural Major Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans14
Design loadH 15
Structure length280 ft (85.3 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic294 (2020)
Projected traffic450 by 2033
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$194,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 20 over Arroyo Diablo built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1936.

What condition is SH 20 over Arroyo Diablo 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 June 2023.

How much traffic does SH 20 over Arroyo Diablo carry?

About 294 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is SH 20 over Arroyo Diablo?

The structure is 280 ft (85.3 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns SH 20 over Arroyo Diablo?

It is owned by the State Highway Agency.