US Bridges

Petaluma Blvd over Six Mile Creek

Fair

Bexar County, Texas · 0.50 MI W of Commercial · Structure no. 150150B27120001

Built
1991
34 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
64 ft
6 main spans
Daily traffic
1,900
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Petaluma Blvd over Six Mile Creek is a concrete culvert carrying Petaluma Blvd over Six Mile Creek in Bexar County, Texas. It was built in 1991, so it is 34 years old, younger 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 1,900 vehicles a day, projected to reach 200 by 2042. The structure is 64 ft (19.5 m) long and 52 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesPetaluma Blvd
CrossesSix Mile Creek
Location0.50 MI W of Commercial
RouteCity Street 0
CountyBexar County
StateTexas
Coordinates29.33973, -98.52516
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length64 ft (19.5 m)
Longest span10 ft (3 m)
Deck width52 ft (15.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2010)
Projected traffic200 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Petaluma Blvd over Six Mile Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Petaluma Blvd over Six Mile Creek 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 July 2023.

How much traffic does Petaluma Blvd over Six Mile Creek carry?

About 1,900 vehicles per day (2010 count).

How long is Petaluma Blvd over Six Mile Creek?

The structure is 64 ft (19.5 m) long with a longest span of 10 ft (3 m) and a deck 52 ft wide.

Who owns Petaluma Blvd over Six Mile Creek?

It is owned by the City or Municipal Highway Agency.