US Bridges

IH 20 WB over SH 108

Fair

Palo Pinto County, Texas · 3.15 MI SW of SH 193 · Structure no. 021820031403125

Built
1970
55 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
150 ft
1 main span
Daily traffic
13,365
2023 count
Owner
State
State Highway Agency

About this bridge

IH 20 WB over SH 108 is a prestressed concrete stringer/multi-beam or girder carrying IH 20 WB over SH 108 in Palo Pinto County, Texas. It was built in 1970, so it is 55 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 13,365 vehicles a day, roughly 28% of them trucks, projected to reach 13,330 by 2038. The structure is 150 ft (45.7 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 20 WB
CrossesSH 108
Location3.15 MI SW of SH 193
RouteInterstate 20
StateTexas
Coordinates32.51496, -98.36773
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating31 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span80 ft (24.4 m)
Deck width42 ft (12.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,365 (2023)
Projected traffic13,330 by 2038
Trucks28%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 20 WB over SH 108 built?

It was built in 1970, making it 55 years old in 2025.

What condition is IH 20 WB over SH 108 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 April 2023.

How much traffic does IH 20 WB over SH 108 carry?

About 13,365 vehicles per day (2023 count), of which roughly 28% are trucks.

How long is IH 20 WB over SH 108?

The structure is 150 ft (45.7 m) long with a longest span of 80 ft (24.4 m) and a deck 42 ft wide.

Who owns IH 20 WB over SH 108?

It is owned by the State Highway Agency.