US Bridges

US 59 SB over Casa Blanca Crk Trib

Good

Victoria County, Texas · 4.17 MI S of FM 444 · Structure no. 132350008901143

Built
1972
53 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
29 ft
5 main spans
Daily traffic
13,766
2023 count
Owner
State
State Highway Agency

About this bridge

US 59 SB over Casa Blanca Crk Trib is a concrete culvert carrying US 59 SB over Casa Blanca Crk Trib in Victoria County, Texas. It was built in 1972, so it is 53 years old, older 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 13,766 vehicles a day, roughly 16% of them trucks, projected to reach 17,550 by 2033. The structure is 29 ft (8.8 m) long and 84 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 59 SB
CrossesCasa Blanca Crk Trib
Location4.17 MI S of FM 444
RouteU.S. Route 59
StateTexas
Coordinates28.87353, -96.85011
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 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 geometry7: Better than present minimum criteria
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 spans5
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span5 ft (1.5 m)
Deck width84 ft (25.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,766 (2023)
Projected traffic17,550 by 2033
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 59 SB over Casa Blanca Crk Trib built?

It was built in 1972, making it 53 years old in 2025.

What condition is US 59 SB over Casa Blanca Crk Trib 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 January 2023.

How much traffic does US 59 SB over Casa Blanca Crk Trib carry?

About 13,766 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is US 59 SB over Casa Blanca Crk Trib?

The structure is 29 ft (8.8 m) long with a longest span of 5 ft (1.5 m) and a deck 84 ft wide.

Who owns US 59 SB over Casa Blanca Crk Trib?

It is owned by the State Highway Agency.