US Bridges

US 87 over Blardone Ditch

Good

Calhoun County, Texas · 0.3 MI W of SH 35 · Structure no. 130290014403048

Built
1967
58 years old, rebuilt 2000
Condition
Good
inspected January 2025
Type
Culvert
Concrete
Length
23 ft
3 main spans
Daily traffic
10,268
2023 count
Owner
State
State Highway Agency

About this bridge

US 87 over Blardone Ditch is a concrete culvert carrying US 87 over Blardone Ditch in Calhoun County, Texas. It was built in 1967 and reconstructed in 2000, so it is 58 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 10,268 vehicles a day, roughly 7% of them trucks, projected to reach 5,400 by 2033. The structure is 23 ft (7 m) long and 86 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 87
CrossesBlardone Ditch
Location0.3 MI W of SH 35
RouteU.S. Route 87
StateTexas
Coordinates28.61061, -96.65041
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 2025
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 geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating24 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length23 ft (7 m)
Longest span7 ft (2.2 m)
Deck width86 ft (26.3 m)
Roadway width82 ft (25.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,268 (2023)
Projected traffic5,400 by 2033
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 87 over Blardone Ditch built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2000.

What condition is US 87 over Blardone Ditch 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 2025.

How much traffic does US 87 over Blardone Ditch carry?

About 10,268 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US 87 over Blardone Ditch?

The structure is 23 ft (7 m) long with a longest span of 7 ft (2.2 m) and a deck 86 ft wide.

Who owns US 87 over Blardone Ditch?

It is owned by the State Highway Agency.