US Bridges

IH 30 over FM 548

Fair

Rockwall County, Texas · 0.62 MI SW of FM 35 · Structure no. 181990000912125

Built
1956
69 years old, rebuilt 1987
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
158 ft
1 main span
Daily traffic
75,013
2023 count
Owner
State
State Highway Agency

About this bridge

IH 30 over FM 548 is a steel continuous stringer/multi-beam or girder carrying IH 30 over FM 548 in Rockwall County, Texas. It was built in 1956 and reconstructed in 1987, so it is 69 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 75,013 vehicles a day, roughly 27% of them trucks, projected to reach 114,322 by 2040. The structure is 158 ft (48.2 m) long and 99 ft wide.

Location

Open in Google Maps
CarriesIH 30
CrossesFM 548
Location0.62 MI SW of FM 35
RouteInterstate 30
CountyRockwall County
StateTexas
Coordinates32.96925, -96.33197
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadOther
Structure length158 ft (48.2 m)
Longest span78 ft (23.8 m)
Deck width99 ft (30.1 m)
Roadway width93 ft (28.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75,013 (2023)
Projected traffic114,322 by 2040
Trucks27%
Lanes on structure4
Traffic directionTwo-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 30 over FM 548 built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1987.

What condition is IH 30 over FM 548 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 30 over FM 548 carry?

About 75,013 vehicles per day (2023 count), of which roughly 27% are trucks.

How long is IH 30 over FM 548?

The structure is 158 ft (48.2 m) long with a longest span of 78 ft (23.8 m) and a deck 99 ft wide.

Who owns IH 30 over FM 548?

It is owned by the State Highway Agency.