US Bridges

SH 21/ SH 71 EB over FM 20

Good

Bastrop County, Texas · 0.5 MI W of FM 969 · Structure no. 140110026504117

Built
2013
12 years old
Condition
Good
inspected November 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
215 ft
3 main spans
Daily traffic
22,737
2019 count
Owner
State
State Highway Agency

About this bridge

SH 21/ SH 71 EB over FM 20 is a prestressed concrete stringer/multi-beam or girder carrying SH 21/ SH 71 EB over FM 20 in Bastrop County, Texas. It was built in 2013, so it is 12 years old, younger 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 22,737 vehicles a day, roughly 5% of them trucks, projected to reach 35,000 by 2030. The structure is 215 ft (65.5 m) long and 40 ft wide.

CarriesSH 21/ SH 71 EB
CrossesFM 20
Location0.5 MI W of FM 969
RouteState Highway 71
StateTexas
Coordinates30.11083, -97.37302
Functional classRural Principal Arterial - Other

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 inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length215 ft (65.5 m)
Longest span75 ft (22.9 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,737 (2019)
Projected traffic35,000 by 2030
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 21/ SH 71 EB over FM 20 built?

It was built in 2013, making it 12 years old in 2025.

What condition is SH 21/ SH 71 EB over FM 20 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 November 2022.

How much traffic does SH 21/ SH 71 EB over FM 20 carry?

About 22,737 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is SH 21/ SH 71 EB over FM 20?

The structure is 215 ft (65.5 m) long with a longest span of 75 ft (22.9 m) and a deck 40 ft wide.

Who owns SH 21/ SH 71 EB over FM 20?

It is owned by the State Highway Agency.