US Bridges

CR 4425 / Derby RD over Frio River West Draw

Fair

Frio County, Texas · 2.2 MI W of IH 35 · Structure no. 150830AA0135002

Built
2008
17 years old
Condition
Fair
inspected July 2023
Type
Other
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
150
2013 count
Owner
County
County Highway Agency

About this bridge

CR 4425 / Derby RD over Frio River West Draw is a prestressed concrete other carrying CR 4425 / Derby RD over Frio River West Draw in Frio County, Texas. It was built in 2008, so it is 17 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 150 vehicles a day, projected to reach 250 by 2033. The structure is 50 ft (15.2 m) long and 26 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesCR 4425 / Derby RD
CrossesFrio River West Draw
Location2.2 MI W of IH 35
RouteCounty Highway 4425
CountyFrio County
StateTexas
Coordinates28.78227, -99.16659
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeOther
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length50 ft (15.2 m)
Longest span50 ft (15.2 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2013)
Projected traffic250 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 4425 / Derby RD over Frio River West Draw built?

It was built in 2008, making it 17 years old in 2025.

What condition is CR 4425 / Derby RD over Frio River West Draw in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does CR 4425 / Derby RD over Frio River West Draw carry?

About 150 vehicles per day (2013 count).

How long is CR 4425 / Derby RD over Frio River West Draw?

The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 26 ft wide.

Who owns CR 4425 / Derby RD over Frio River West Draw?

It is owned by the County Highway Agency.