US Bridges

Marbach RD over Drain

Good

Bexar County, Texas · 2.6 MI W of Hunt Lane · Structure no. 150150B21735015

Built
1987
38 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
16,785
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Marbach RD over Drain is a concrete culvert carrying Marbach RD over Drain in Bexar County, Texas. It was built in 1987, so it is 38 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 16,785 vehicles a day, projected to reach 1,100 by 2031. The structure is 23 ft (7 m) long and 100 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMarbach RD
CrossesDrain
Location2.6 MI W of Hunt Lane
RouteCity Street 8065
StateTexas
Coordinates29.40973, -98.69988
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width100 ft (30.5 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,785 (2020)
Projected traffic1,100 by 2031
Trucks0%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Marbach RD over Drain built?

It was built in 1987, making it 38 years old in 2025.

What condition is Marbach RD over Drain 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 May 2023.

How much traffic does Marbach RD over Drain carry?

About 16,785 vehicles per day (2020 count).

How long is Marbach RD over Drain?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 100 ft wide.

Who owns Marbach RD over Drain?

It is owned by the City or Municipal Highway Agency.