US Bridges

Sleeping Child RD over Two Bear Creek 110

Good

Ravalli County, Montana · 9M NE Darby · Structure no. L41602008+08401

Built
2010
15 years old
Condition
Good
inspected August 2023
Type
Channel Beam
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
349
2023 count
Owner
County
County Highway Agency

About this bridge

Sleeping Child RD over Two Bear Creek 110 is a prestressed concrete channel beam carrying Sleeping Child RD over Two Bear Creek 110 in Ravalli County, Montana. It was built in 2010, so it is 15 years old, younger than the Montana average of 47 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 349 vehicles a day, roughly 1% of them trucks, projected to reach 366 by 2043. The structure is 40 ft (12.2 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSleeping Child RD
CrossesTwo Bear Creek 110
Location9M NE Darby
RouteCounty Highway 41602
StateMontana
Coordinates46.11167, -114.00944
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating33.6 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span35 ft (10.7 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic349 (2023)
Projected traffic366 by 2043
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Sleeping Child RD over Two Bear Creek 110 built?

It was built in 2010, making it 15 years old in 2025.

What condition is Sleeping Child RD over Two Bear Creek 110 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 August 2023.

How much traffic does Sleeping Child RD over Two Bear Creek 110 carry?

About 349 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Sleeping Child RD over Two Bear Creek 110?

The structure is 40 ft (12.2 m) long with a longest span of 35 ft (10.7 m) and a deck 16 ft wide.

Who owns Sleeping Child RD over Two Bear Creek 110?

It is owned by the County Highway Agency.