US Bridges

IH 20 EB over US 175

Fair

Dallas County, Texas · 1.6 MI E of ST Augustine · Structure no. 180570237403315

Built
1971
54 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
264 ft
4 main spans
Daily traffic
62,362
2021 count
Owner
State
State Highway Agency

About this bridge

IH 20 EB over US 175 is a prestressed concrete continuous stringer/multi-beam or girder carrying IH 20 EB over US 175 in Dallas County, Texas. It was built in 1971, so it is 54 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 62,362 vehicles a day, roughly 21% of them trucks, projected to reach 87,307 by 2041. The structure is 264 ft (80.5 m) long and 70 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIH 20 EB
CrossesUS 175
Location1.6 MI E of ST Augustine
RouteInterstate 20
CountyDallas County
StateTexas
Coordinates32.69132, -96.6322
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length264 ft (80.5 m)
Longest span64 ft (19.5 m)
Deck width70 ft (21.3 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deck19 ft (5.8 m)

Traffic and service

Average daily traffic62,362 (2021)
Projected traffic87,307 by 2041
Trucks21%
Lanes on structure4
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 EB over US 175 built?

It was built in 1971, making it 54 years old in 2025.

What condition is IH 20 EB over US 175 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 IH 20 EB over US 175 carry?

About 62,362 vehicles per day (2021 count), of which roughly 21% are trucks.

How long is IH 20 EB over US 175?

The structure is 264 ft (80.5 m) long with a longest span of 64 ft (19.5 m) and a deck 70 ft wide.

Who owns IH 20 EB over US 175?

It is owned by the State Highway Agency.