US Bridges

Rock Island Road over Johnson Creek

Fair

Polk County, Texas · 1.70 MI E of US 59 · Structure no. 111870AA0244003

Built
1985
40 years old, rebuilt 2013
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
57 ft
4 main spans
Daily traffic
48
2023 count
Owner
County
County Highway Agency

About this bridge

Rock Island Road over Johnson Creek is a steel continuous stringer/multi-beam or girder carrying Rock Island Road over Johnson Creek in Polk County, Texas. It was built in 1985 and reconstructed in 2013, so it is 40 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 48 vehicles a day, roughly 3% of them trucks, projected to reach 48 by 2041. The structure is 57 ft (17.4 m) long and 16 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesRock Island Road
CrossesJohnson Creek
Location1.70 MI E of US 59
RouteCounty Highway 0
CountyPolk County
StateTexas
Coordinates30.91967, -94.79797
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than 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 rating54 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckWood or timber
Main spans4
Design loadUnknown
Structure length57 ft (17.4 m)
Longest span15 ft (4.6 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48 (2023)
Projected traffic48 by 2041
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rock Island Road over Johnson Creek built?

It was built in 1985, making it 40 years old in 2025. It was reconstructed in 2013.

What condition is Rock Island Road over Johnson Creek 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 May 2023.

How much traffic does Rock Island Road over Johnson Creek carry?

About 48 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Rock Island Road over Johnson Creek?

The structure is 57 ft (17.4 m) long with a longest span of 15 ft (4.6 m) and a deck 16 ft wide.

Who owns Rock Island Road over Johnson Creek?

It is owned by the County Highway Agency.