US Bridges

Proton RD over Trib of Lorence CR

Good

Bexar County, Texas · 0.15 MI E of Sigma RD · Structure no. 150150B28166002

Built
1985
40 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
230
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Proton RD over Trib of Lorence CR is a concrete culvert carrying Proton RD over Trib of Lorence CR in Bexar County, Texas. It was built in 1985, so it is 40 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 230 vehicles a day, projected to reach 1,000 by 2038. The structure is 25 ft (7.6 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesProton RD
CrossesTrib of Lorence CR
Location0.15 MI E of Sigma RD
RouteCity Street 0
StateTexas
Coordinates29.6121, -98.48057
Functional classUrban Local

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 evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span8 ft (2.4 m)
Deck width61 ft (18.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2018)
Projected traffic1,000 by 2038
Trucks0%
Lanes on structure2
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Proton RD over Trib of Lorence CR built?

It was built in 1985, making it 40 years old in 2025.

What condition is Proton RD over Trib of Lorence CR 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 Proton RD over Trib of Lorence CR carry?

About 230 vehicles per day (2018 count).

How long is Proton RD over Trib of Lorence CR?

The structure is 25 ft (7.6 m) long with a longest span of 8 ft (2.4 m) and a deck 61 ft wide.

Who owns Proton RD over Trib of Lorence CR?

It is owned by the City or Municipal Highway Agency.