US Bridges

Blanco RD over Olmos Creek

Good

Bexar County, Texas · 1.9 MI S of Lp 410 · Structure no. 150150B03260004

Built
1981
44 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
263 ft
6 main spans
Daily traffic
15,332
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Blanco RD over Olmos Creek is a concrete stringer/multi-beam or girder carrying Blanco RD over Olmos Creek in Bexar County, Texas. It was built in 1981, so it is 44 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 15,332 vehicles a day, projected to reach 20,000 by 2031. The structure is 263 ft (80.2 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesBlanco RD
CrossesOlmos Creek
Location1.9 MI S of Lp 410
RouteCity Street 8007
CountyBexar County
StateTexas
Coordinates29.49371, -98.50784
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length263 ft (80.2 m)
Longest span44 ft (13.4 m)
Deck width56 ft (17.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,332 (2019)
Projected traffic20,000 by 2031
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$29,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Blanco RD over Olmos Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Blanco RD over Olmos Creek 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 June 2023.

How much traffic does Blanco RD over Olmos Creek carry?

About 15,332 vehicles per day (2019 count).

How long is Blanco RD over Olmos Creek?

The structure is 263 ft (80.2 m) long with a longest span of 44 ft (13.4 m) and a deck 56 ft wide.

Who owns Blanco RD over Olmos Creek?

It is owned by the City or Municipal Highway Agency.