US Bridges

CR 4870 over Lake Winnsboro

Good

Wood County, Texas · 1.30 MI S of FM 515 · Structure no. 102500AA4870001

Built
2020
5 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
90 ft
1 main span
Daily traffic
107
2022 count
Owner
County
County Highway Agency

About this bridge

CR 4870 over Lake Winnsboro is a prestressed concrete box beam or girders - multiple carrying CR 4870 over Lake Winnsboro in Wood County, Texas. It was built in 2020, so it is 5 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 107 vehicles a day, roughly 3% of them trucks, projected to reach 119 by 2042. The structure is 90 ft (27.4 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCR 4870
CrossesLake Winnsboro
Location1.30 MI S of FM 515
RouteCounty Highway 4870
CountyWood County
StateTexas
Coordinates32.91828, -95.35478
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 protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length90 ft (27.4 m)
Longest span90 ft (27.4 m)
Deck width26 ft (8 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic107 (2022)
Projected traffic119 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 4870 over Lake Winnsboro built?

It was built in 2020, making it 5 years old in 2025.

What condition is CR 4870 over Lake Winnsboro 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 October 2023.

How much traffic does CR 4870 over Lake Winnsboro carry?

About 107 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is CR 4870 over Lake Winnsboro?

The structure is 90 ft (27.4 m) long with a longest span of 90 ft (27.4 m) and a deck 26 ft wide.

Who owns CR 4870 over Lake Winnsboro?

It is owned by the County Highway Agency.