US Bridges

IH 20 WB over Brazos River

Fair

Parker County, Texas · 1.65 MI W of FM 113 · Structure no. 021840031401083

Built
1970
55 years old, rebuilt 2008
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,280 ft
5 main spans
Daily traffic
17,289
2023 count
Owner
State
State Highway Agency

About this bridge

IH 20 WB over Brazos River is a steel continuous stringer/multi-beam or girder carrying IH 20 WB over Brazos River in Parker County, Texas. It was built in 1970 and reconstructed in 2008, 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 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 17,289 vehicles a day, roughly 40% of them trucks, projected to reach 14,630 by 2033. The structure is 1,280 ft (390.1 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 20 WB
CrossesBrazos River
Location1.65 MI W of FM 113
RouteInterstate 20
StateTexas
Coordinates32.66511, -98.03322
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5 (+9 approach)
Design loadHS 20
Structure length1,280 ft (390.1 m)
Longest span145 ft (44.2 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,289 (2023)
Projected traffic14,630 by 2033
Trucks40%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 20 WB over Brazos River built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2008.

What condition is IH 20 WB over Brazos River 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 2024.

How much traffic does IH 20 WB over Brazos River carry?

About 17,289 vehicles per day (2023 count), of which roughly 40% are trucks.

How long is IH 20 WB over Brazos River?

The structure is 1,280 ft (390.1 m) long with a longest span of 145 ft (44.2 m) and a deck 42 ft wide.

Who owns IH 20 WB over Brazos River?

It is owned by the State Highway Agency.