US Bridges

CR 305 - Pct 4 over Rock Tank Creek

Fair

Johnson County, Texas · 1.1 MI N of FM 4 · Structure no. 021270AA0476002

Built
1998
27 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
92 ft
1 main span
Daily traffic
159
2019 count
Owner
County
County Highway Agency

About this bridge

CR 305 - Pct 4 over Rock Tank Creek is a steel continuous stringer/multi-beam or girder carrying CR 305 - Pct 4 over Rock Tank Creek in Johnson County, Texas. It was built in 1998, so it is 27 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 159 vehicles a day, projected to reach 190 by 2036. The structure is 92 ft (28 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCR 305 - Pct 4
CrossesRock Tank Creek
Location1.1 MI N of FM 4
RouteCounty Highway 305
CountyJohnson County
StateTexas
Coordinates32.30714, -97.22261
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 protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadUnknown
Structure length92 ft (28 m)
Longest span45 ft (13.7 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic159 (2019)
Projected traffic190 by 2036
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 305 - Pct 4 over Rock Tank Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is CR 305 - Pct 4 over Rock Tank 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 November 2024.

How much traffic does CR 305 - Pct 4 over Rock Tank Creek carry?

About 159 vehicles per day (2019 count).

How long is CR 305 - Pct 4 over Rock Tank Creek?

The structure is 92 ft (28 m) long with a longest span of 45 ft (13.7 m) and a deck 25 ft wide.

Who owns CR 305 - Pct 4 over Rock Tank Creek?

It is owned by the County Highway Agency.