US Bridges

SH 6 over Duffau Creek Branch

Good

Bosque County, Texas · 7.6 MI SE Hamilton Cl · Structure no. 090180025804060

Built
1952
73 years old, rebuilt 2024
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
3,761
2023 count
Owner
State
State Highway Agency

About this bridge

SH 6 over Duffau Creek Branch is a concrete culvert carrying SH 6 over Duffau Creek Branch in Bosque County, Texas. It was built in 1952 and reconstructed in 2024, so it is 73 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 3,761 vehicles a day, roughly 13% of them trucks, projected to reach 6,243 by 2042. The structure is 22 ft (6.6 m) long and 61 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesSH 6
CrossesDuffau Creek Branch
Location7.6 MI SE Hamilton Cl
RouteState Highway 6
StateTexas
Coordinates31.98088, -97.85461
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 inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to 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 spans2
Design loadOther
Structure length22 ft (6.6 m)
Longest span10 ft (3 m)
Deck width61 ft (18.6 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,761 (2023)
Projected traffic6,243 by 2042
Trucks13%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 SH 6 over Duffau Creek Branch built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 2024.

What condition is SH 6 over Duffau Creek Branch 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 December 2024.

How much traffic does SH 6 over Duffau Creek Branch carry?

About 3,761 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is SH 6 over Duffau Creek Branch?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3 m) and a deck 61 ft wide.

Who owns SH 6 over Duffau Creek Branch?

It is owned by the State Highway Agency.