US Bridges

S Walnut Ave over Drainage Ditch

Good

Comal County, Texas · 0.7 MI SE of IH35 · Structure no. 150460B01835004

Built
1998
27 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
76 ft
8 main spans
Daily traffic
13,035
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

S Walnut Ave over Drainage Ditch is a concrete culvert carrying S Walnut Ave over Drainage Ditch in Comal County, Texas. It was built in 1998, so it is 27 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 13,035 vehicles a day, projected to reach 15,000 by 2033. The structure is 76 ft (23.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesS Walnut Ave
CrossesDrainage Ditch
Location0.7 MI SE of IH35
RouteCity Street 0
CountyComal County
StateTexas
Coordinates29.67797, -98.12208
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 typeCulvert
MaterialConcrete
DeckNot applicable
Main spans8
Design loadUnknown
Structure length76 ft (23.2 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,035 (2020)
Projected traffic15,000 by 2033
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 S Walnut Ave over Drainage Ditch built?

It was built in 1998, making it 27 years old in 2025.

What condition is S Walnut Ave over Drainage Ditch 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 September 2023.

How much traffic does S Walnut Ave over Drainage Ditch carry?

About 13,035 vehicles per day (2020 count).

How long is S Walnut Ave over Drainage Ditch?

The structure is 76 ft (23.2 m) long with a longest span of 9 ft (2.7 m).

Who owns S Walnut Ave over Drainage Ditch?

It is owned by the City or Municipal Highway Agency.