US Bridges

Alpine DR over Quinlan Creek

Fair

Kerr County, Texas · 0.13 MI SE of SH 16 · Structure no. 151330G00020001

Built
1950
75 years old, rebuilt 1974
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
472
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Alpine DR over Quinlan Creek is a steel stringer/multi-beam or girder carrying Alpine DR over Quinlan Creek in Kerr County, Texas. It was built in 1950 and reconstructed in 1974, so it is 75 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 472 vehicles a day, projected to reach 300 by 2032. The structure is 37 ft (11.3 m) long and 38 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesAlpine DR
CrossesQuinlan Creek
Location0.13 MI SE of SH 16
RouteCity Street 0
CountyKerr County
StateTexas
Coordinates30.06656, -99.11292
Functional classRural Local

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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy4: 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

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span35 ft (10.7 m)
Deck width38 ft (11.5 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic472 (2020)
Projected traffic300 by 2032
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$126,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Alpine DR over Quinlan Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1974.

What condition is Alpine DR over Quinlan Creek 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 2023.

How much traffic does Alpine DR over Quinlan Creek carry?

About 472 vehicles per day (2020 count).

How long is Alpine DR over Quinlan Creek?

The structure is 37 ft (11.3 m) long with a longest span of 35 ft (10.7 m) and a deck 38 ft wide.

Who owns Alpine DR over Quinlan Creek?

It is owned by the City or Municipal Highway Agency.