US Bridges

Loop 306 WB over At & Sf RR

Fair

Tom Green County, Texas · 2.45 MI E of US 67 · Structure no. 072260007708053

Built
1962
63 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
225 ft
5 main spans
Daily traffic
10,791
2019 count
Owner
State
State Highway Agency

About this bridge

Loop 306 WB over At & Sf RR is a steel continuous stringer/multi-beam or girder carrying Loop 306 WB over At & Sf RR in Tom Green County, Texas. It was built in 1962, so it is 63 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 10,791 vehicles a day, roughly 5% of them trucks, projected to reach 14,610 by 2033. The structure is 225 ft (68.6 m) long and 44 ft wide.

CarriesLoop 306 WB
CrossesAt & Sf RR
Location2.45 MI E of US 67
RouteState Highway 306
StateTexas
Coordinates31.41522, -100.46994
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating31 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadOther
Structure length225 ft (68.6 m)
Longest span45 ft (13.7 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,791 (2019)
Projected traffic14,610 by 2033
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemYes

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 Loop 306 WB over At & Sf RR built?

It was built in 1962, making it 63 years old in 2025.

What condition is Loop 306 WB over At & Sf RR 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 2024.

How much traffic does Loop 306 WB over At & Sf RR carry?

About 10,791 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Loop 306 WB over At & Sf RR?

The structure is 225 ft (68.6 m) long with a longest span of 45 ft (13.7 m) and a deck 44 ft wide.

Who owns Loop 306 WB over At & Sf RR?

It is owned by the State Highway Agency.