US Bridges

Bus Loop 20 R over Southern Switching RR

Good

Taylor County, Texas · 2.35 MI W of Lp 322 · Structure no. 082210000618054

Built
1951
74 years old, rebuilt 1986
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
322 ft
8 main spans
Daily traffic
12,830
2013 count
Owner
State
State Highway Agency

About this bridge

Bus Loop 20 R over Southern Switching RR is a steel stringer/multi-beam or girder carrying Bus Loop 20 R over Southern Switching RR in Taylor County, Texas. It was built in 1951 and reconstructed in 1986, so it is 74 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,830 vehicles a day, roughly 11% of them trucks, projected to reach 17,960 by 2033. The structure is 322 ft (98.1 m) long and 72 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBus Loop 20 R
CrossesSouthern Switching RR
Location2.35 MI W of Lp 322
RouteState Highway 20
StateTexas
Coordinates32.44951, -99.72295
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length322 ft (98.1 m)
Longest span40 ft (12.2 m)
Deck width72 ft (21.9 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,830 (2013)
Projected traffic17,960 by 2033
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 km)
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 Bus Loop 20 R over Southern Switching RR built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1986.

What condition is Bus Loop 20 R over Southern Switching RR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Bus Loop 20 R over Southern Switching RR carry?

About 12,830 vehicles per day (2013 count), of which roughly 11% are trucks.

How long is Bus Loop 20 R over Southern Switching RR?

The structure is 322 ft (98.1 m) long with a longest span of 40 ft (12.2 m) and a deck 72 ft wide.

Who owns Bus Loop 20 R over Southern Switching RR?

It is owned by the State Highway Agency.