US Bridges

Lp 1604 Sbml over Marbach Rd.

Good

Bexar County, Texas · 1.53 MI N of US 90 · Structure no. 150150245201281

Built
2019
6 years old
Condition
Good
inspected July 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
420 ft
3 main spans
Daily traffic
16,200
2020 count
Owner
State
State Highway Agency

About this bridge

Lp 1604 Sbml over Marbach Rd. is a prestressed concrete stringer/multi-beam or girder carrying Lp 1604 Sbml over Marbach Rd. in Bexar County, Texas. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 16,200 vehicles a day, roughly 5% of them trucks, projected to reach 23,950 by 2040. The structure is 420 ft (128 m) long and 48 ft wide.

Location

Open in Google Maps
CarriesLp 1604 Sbml
CrossesMarbach Rd.
Location1.53 MI N of US 90
RouteState Highway 1604
CountyBexar County
StateTexas
Coordinates29.40306, -98.70694
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length420 ft (128 m)
Longest span140 ft (42.7 m)
Deck width48 ft (14.6 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,200 (2020)
Projected traffic23,950 by 2040
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lp 1604 Sbml over Marbach Rd. built?

It was built in 2019, making it 6 years old in 2025.

What condition is Lp 1604 Sbml over Marbach Rd. 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 July 2022.

How much traffic does Lp 1604 Sbml over Marbach Rd. carry?

About 16,200 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Lp 1604 Sbml over Marbach Rd.?

The structure is 420 ft (128 m) long with a longest span of 140 ft (42.7 m) and a deck 48 ft wide.

Who owns Lp 1604 Sbml over Marbach Rd.?

It is owned by the State Highway Agency.