US Bridges

CR SW 4120 over Pin Oak Creek Trib

Fair

Navarro County, Texas · 1.60 MI W of FM 1838 · Structure no. 181750AA0601001

Built
1991
34 years old, rebuilt 2015
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
50 ft
1 main span
Daily traffic
100
2019 count
Owner
County
County Highway Agency

About this bridge

CR SW 4120 over Pin Oak Creek Trib is a steel continuous stringer/multi-beam or girder carrying CR SW 4120 over Pin Oak Creek Trib in Navarro County, Texas. It was built in 1991 and reconstructed in 2015, so it is 34 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 100 vehicles a day, projected to reach 50 by 2031. The structure is 50 ft (15.2 m) long and 20 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCR SW 4120
CrossesPin Oak Creek Trib
Location1.60 MI W of FM 1838
RouteCounty Highway 4120
CountyNavarro County
StateTexas
Coordinates31.82421, -96.68671
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 protection7 GoodSome minor problems.
Last inspectionNovember 2024
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 alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span29 ft (8.8 m)
Deck width20 ft (6 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2019)
Projected traffic50 by 2031
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 SW 4120 over Pin Oak Creek Trib built?

It was built in 1991, making it 34 years old in 2025. It was reconstructed in 2015.

What condition is CR SW 4120 over Pin Oak Creek Trib 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 November 2024.

How much traffic does CR SW 4120 over Pin Oak Creek Trib carry?

About 100 vehicles per day (2019 count).

How long is CR SW 4120 over Pin Oak Creek Trib?

The structure is 50 ft (15.2 m) long with a longest span of 29 ft (8.8 m) and a deck 20 ft wide.

Who owns CR SW 4120 over Pin Oak Creek Trib?

It is owned by the County Highway Agency.