US Bridges

ST Augustine RD over US 175

Fair

Dallas County, Texas · 1.60 MI NW of IH 20 · Structure no. 180570019702169

Built
1971
54 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
275 ft
2 main spans
Daily traffic
9,059
2014 count
Owner
State
State Highway Agency

About this bridge

ST Augustine RD over US 175 is a prestressed concrete stringer/multi-beam or girder carrying ST Augustine RD 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 9,059 vehicles a day, roughly 3% of them trucks, projected to reach 6,600 by 2042. The structure is 275 ft (83.8 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesST Augustine RD
CrossesUS 175
Location1.60 MI NW of IH 20
RouteCity Street 114
CountyDallas County
StateTexas
Coordinates32.70206, -96.65706
Functional classUrban Minor Arterial

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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadH 20
Structure length275 ft (83.8 m)
Longest span84 ft (25.6 m)
Deck width58 ft (17.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,059 (2014)
Projected traffic6,600 by 2042
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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$30,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST Augustine RD over US 175 built?

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

What condition is ST Augustine RD 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 May 2024.

How much traffic does ST Augustine RD over US 175 carry?

About 9,059 vehicles per day (2014 count), of which roughly 3% are trucks.

How long is ST Augustine RD over US 175?

The structure is 275 ft (83.8 m) long with a longest span of 84 ft (25.6 m) and a deck 58 ft wide.

Who owns ST Augustine RD over US 175?

It is owned by the State Highway Agency.