US Bridges

Chisholm TR (ntta) over Trib. to Rock Creek

Good

Johnson County, Texas · 6.2 MI S of FM 1187 · Structure no. 021270050405505

Built
2014
11 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
660 ft
6 main spans
Daily traffic
14,426
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Chisholm TR (ntta) over Trib. to Rock Creek is a prestressed concrete stringer/multi-beam or girder carrying Chisholm TR (ntta) over Trib. to Rock Creek in Johnson County, Texas. It was built in 2014, so it is 11 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 14,426 vehicles a day, roughly 1% of them trucks, projected to reach 41,200 by 2033. The structure is 660 ft (201.2 m) long and 58 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesChisholm TR (ntta)
CrossesTrib. to Rock Creek
Location6.2 MI S of FM 1187
CountyJohnson County
StateTexas
Coordinates32.47558, -97.42404
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHL 93
Structure length660 ft (201.2 m)
Longest span110 ft (33.5 m)
Deck width58 ft (17.7 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,426 (2023)
Projected traffic41,200 by 2033
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a toll road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 Chisholm TR (ntta) over Trib. to Rock Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is Chisholm TR (ntta) over Trib. to Rock Creek 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 June 2024.

How much traffic does Chisholm TR (ntta) over Trib. to Rock Creek carry?

About 14,426 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Chisholm TR (ntta) over Trib. to Rock Creek?

The structure is 660 ft (201.2 m) long with a longest span of 110 ft (33.5 m) and a deck 58 ft wide.

Who owns Chisholm TR (ntta) over Trib. to Rock Creek?

It is owned by the State Toll Authority.