US Bridges

Richmond Avenue over San Antonio River

Fair

Bexar County, Texas · 0.06 MI S of N ST Marys · Structure no. 150150B28705001

Built
1930
95 years old
Condition
Fair
inspected August 2023
Type
Girder and Floorbeam System
Steel
Length
82 ft
1 main span
Daily traffic
110
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Richmond Avenue over San Antonio River is a steel girder and floorbeam system carrying Richmond Avenue over San Antonio River in Bexar County, Texas. It was built in 1930, so it is 95 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 110 vehicles a day, projected to reach 886 by 2042. The structure is 82 ft (25 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRichmond Avenue
CrossesSan Antonio River
Location0.06 MI S of N ST Marys
RouteCity Street 0
CountyBexar County
StateTexas
Coordinates29.43124, -98.48974
Functional classUrban 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 protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating22 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length82 ft (25 m)
Longest span81 ft (24.7 m)
Deck width58 ft (17.6 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2020)
Projected traffic886 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$418,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Richmond Avenue over San Antonio River built?

It was built in 1930, making it 95 years old in 2025.

What condition is Richmond Avenue over San Antonio River 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 August 2023.

How much traffic does Richmond Avenue over San Antonio River carry?

About 110 vehicles per day (2020 count).

How long is Richmond Avenue over San Antonio River?

The structure is 82 ft (25 m) long with a longest span of 81 ft (24.7 m) and a deck 58 ft wide.

Who owns Richmond Avenue over San Antonio River?

It is owned by the City or Municipal Highway Agency.