US Bridges

CR 406 over Supplejack Creek

Good

Lavaca County, Texas · 2.15 MI W of FM 2543 · Structure no. 131430AA0413001

Built
1956
69 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
130
2012 count
Owner
County
County Highway Agency

About this bridge

CR 406 over Supplejack Creek is a concrete slab carrying CR 406 over Supplejack Creek in Lavaca County, Texas. It was built in 1956, so it is 69 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 130 vehicles a day, projected to reach 200 by 2032. The structure is 26 ft (7.9 m) long and 22 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCR 406
CrossesSupplejack Creek
Location2.15 MI W of FM 2543
RouteCounty Highway 406
StateTexas
Coordinates29.26995, -97.09062
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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 typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span23 ft (7 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2012)
Projected traffic200 by 2032
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CR 406 over Supplejack Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is CR 406 over Supplejack 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 January 2024.

How much traffic does CR 406 over Supplejack Creek carry?

About 130 vehicles per day (2012 count).

How long is CR 406 over Supplejack Creek?

The structure is 26 ft (7.9 m) long with a longest span of 23 ft (7 m) and a deck 22 ft wide.

Who owns CR 406 over Supplejack Creek?

It is owned by the County Highway Agency.