US Bridges

CR 456 over Leon Slough

Good

Comanche County, Texas · 2.70 MI NE of SH 16 · Structure no. 230470AA0304002

Built
2004
21 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
61 ft
2 main spans
Daily traffic
50
2013 count
Owner
County
County Highway Agency

About this bridge

CR 456 over Leon Slough is a concrete stringer/multi-beam or girder carrying CR 456 over Leon Slough in Comanche County, Texas. It was built in 2004, so it is 21 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 50 vehicles a day, projected to reach 70 by 2033. The structure is 61 ft (18.6 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCR 456
CrossesLeon Slough
Location2.70 MI NE of SH 16
RouteCounty Highway 456
CountyComanche County
StateTexas
Coordinates32.1554, -98.51628
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 protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2013)
Projected traffic70 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CR 456 over Leon Slough built?

It was built in 2004, making it 21 years old in 2025.

What condition is CR 456 over Leon Slough 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 April 2023.

How much traffic does CR 456 over Leon Slough carry?

About 50 vehicles per day (2013 count).

How long is CR 456 over Leon Slough?

The structure is 61 ft (18.6 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns CR 456 over Leon Slough?

It is owned by the County Highway Agency.