US Bridges

Walnut Ave over Dry Comal Creek

Fair

Comal County, Texas · 0.45 MI SE of SH 46 Bu · Structure no. 150460B01830001

Built
1970
55 years old, rebuilt 2011
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
280 ft
4 main spans
Daily traffic
19,391
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Walnut Ave over Dry Comal Creek is a prestressed concrete stringer/multi-beam or girder carrying Walnut Ave over Dry Comal Creek in Comal County, Texas. It was built in 1970 and reconstructed in 2011, so it is 55 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 19,391 vehicles a day, projected to reach 15,000 by 2033. The structure is 280 ft (85.3 m) long and 58 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesWalnut Ave
CrossesDry Comal Creek
Location0.45 MI SE of SH 46 Bu
RouteCity Street 8405
CountyComal County
StateTexas
Coordinates29.69783, -98.13651
Functional classUrban Other Principal Arterial

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length280 ft (85.3 m)
Longest span70 ft (21.3 m)
Deck width58 ft (17.6 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,391 (2020)
Projected traffic15,000 by 2033
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$34,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Walnut Ave over Dry Comal Creek built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2011.

What condition is Walnut Ave over Dry Comal 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 September 2023.

How much traffic does Walnut Ave over Dry Comal Creek carry?

About 19,391 vehicles per day (2020 count).

How long is Walnut Ave over Dry Comal Creek?

The structure is 280 ft (85.3 m) long with a longest span of 70 ft (21.3 m) and a deck 58 ft wide.

Who owns Walnut Ave over Dry Comal Creek?

It is owned by the City or Municipal Highway Agency.