US Bridges

W 15th ST over Shoal Creek/Lamar Blvd

Good

Travis County, Texas · 0.20 MI W of West Ave · Structure no. 142270B01684001

Built
1966
59 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
506 ft
6 main spans
Daily traffic
16,387
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

W 15th ST over Shoal Creek/Lamar Blvd is a prestressed concrete stringer/multi-beam or girder carrying W 15th ST over Shoal Creek/Lamar Blvd in Travis County, Texas. It was built in 1966, so it is 59 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 16,387 vehicles a day, roughly 3% of them trucks, projected to reach 45,860 by 2034. The structure is 506 ft (154.2 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesW 15th ST
CrossesShoal Creek/Lamar Blvd
Location0.20 MI W of West Ave
RouteCity Street 0
StateTexas
Coordinates30.28002, -97.75097
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6 (+2 approach)
Design loadUnknown
Structure length506 ft (154.2 m)
Longest span75 ft (22.8 m)
Deck width58 ft (17.7 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,387 (2020)
Projected traffic45,860 by 2034
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was W 15th ST over Shoal Creek/Lamar Blvd built?

It was built in 1966, making it 59 years old in 2025.

What condition is W 15th ST over Shoal Creek/Lamar Blvd 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 May 2024.

How much traffic does W 15th ST over Shoal Creek/Lamar Blvd carry?

About 16,387 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is W 15th ST over Shoal Creek/Lamar Blvd?

The structure is 506 ft (154.2 m) long with a longest span of 75 ft (22.8 m) and a deck 58 ft wide.

Who owns W 15th ST over Shoal Creek/Lamar Blvd?

It is owned by the City or Municipal Highway Agency.