US Bridges

Tullock CR RD over Tullock Creek 029

Fair

Big Horn County, Montana · 15M NE Hardin · Structure no. L02002006+05001

Built
2006
19 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
34
2023 count
Owner
County
County Highway Agency

About this bridge

Tullock CR RD over Tullock Creek 029 is a prestressed concrete tee beam carrying Tullock CR RD over Tullock Creek 029 in Big Horn County, Montana. It was built in 2006, so it is 19 years old, younger than the Montana average of 47 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 34 vehicles a day, projected to reach 36 by 2043. The structure is 66 ft (20.1 m) long and 30 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

Location

Open in Google Maps
CarriesTullock CR RD
CrossesTullock Creek 029
Location15M NE Hardin
RouteCounty Highway 2002
CountyBig Horn County
StateMontana
Coordinates45.87148, -107.32367
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating33 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span66 ft (20.1 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34 (2023)
Projected traffic36 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 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$62,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Tullock CR RD over Tullock Creek 029 built?

It was built in 2006, making it 19 years old in 2025.

What condition is Tullock CR RD over Tullock Creek 029 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 July 2024.

How much traffic does Tullock CR RD over Tullock Creek 029 carry?

About 34 vehicles per day (2023 count).

How long is Tullock CR RD over Tullock Creek 029?

The structure is 66 ft (20.1 m) long with a longest span of 66 ft (20.1 m) and a deck 30 ft wide.

Who owns Tullock CR RD over Tullock Creek 029?

It is owned by the County Highway Agency.