US Bridges

IH 20 WB over SH 18

Fair

Ward County, Texas · IH 20 @ SH 18 · Structure no. 062380000404031

Built
1964
61 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
182 ft
4 main spans
Daily traffic
12,310
2022 count
Owner
State
State Highway Agency

About this bridge

IH 20 WB over SH 18 is a prestressed concrete stringer/multi-beam or girder carrying IH 20 WB over SH 18 in Ward County, Texas. It was built in 1964, so it is 61 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 12,310 vehicles a day, roughly 49% of them trucks, projected to reach 24,374 by 2042. The structure is 182 ft (55.5 m) long and 40 ft wide.

CarriesIH 20 WB
CrossesSH 18
LocationIH 20 @ SH 18
RouteInterstate 20
StateTexas
Coordinates31.57514, -102.89187
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length182 ft (55.5 m)
Longest span45 ft (13.7 m)
Deck width40 ft (12.3 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,310 (2022)
Projected traffic24,374 by 2042
Trucks49%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 18 built?

It was built in 1964, making it 61 years old in 2025.

What condition is IH 20 WB over SH 18 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 IH 20 WB over SH 18 carry?

About 12,310 vehicles per day (2022 count), of which roughly 49% are trucks.

How long is IH 20 WB over SH 18?

The structure is 182 ft (55.5 m) long with a longest span of 45 ft (13.7 m) and a deck 40 ft wide.

Who owns IH 20 WB over SH 18?

It is owned by the State Highway Agency.