US Bridges

San Antonio Street over Comal River

Good

Comal County, Texas · 0.25 MI NE of SH 46 Bus · Structure no. 150460B01550001

Built
1923
102 years old, rebuilt 2020
Condition
Good
inspected September 2023
Type
Arch - Deck
Concrete
Length
410 ft
5 main spans
Daily traffic
8,654
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

San Antonio Street over Comal River is a concrete arch - deck carrying San Antonio Street over Comal River in Comal County, Texas. It was built in 1923 and reconstructed in 2020, so it is 102 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 8,654 vehicles a day, roughly 1% of them trucks, projected to reach 12,850 by 2033. The structure is 410 ft (125 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSan Antonio Street
CrossesComal River
Location0.25 MI NE of SH 46 Bus
RouteCity Street 8408
StateTexas
Coordinates29.70635, -98.12155
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5 (+2 approach)
Design loadHL 93
Structure length410 ft (125 m)
Longest span70 ft (21.3 m)
Deck width31 ft (9.3 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,654 (2015)
Projected traffic12,850 by 2033
Trucks1%
Lanes on structure2
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 statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$864,000
NavigationNo navigation control on waterway

Frequently asked questions

When was San Antonio Street over Comal River built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 2020.

What condition is San Antonio Street over Comal River 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 San Antonio Street over Comal River carry?

About 8,654 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is San Antonio Street over Comal River?

The structure is 410 ft (125 m) long with a longest span of 70 ft (21.3 m) and a deck 31 ft wide.

Who owns San Antonio Street over Comal River?

It is owned by the City or Municipal Highway Agency.