US Bridges

Sunnyside RD over Redwater River 014

Fair

McCone County, Montana · 22M SE Wolf Point · Structure no. L28507013+00001

Built
1989
36 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Prestressed Concrete
Length
173 ft
2 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Sunnyside RD over Redwater River 014 is a prestressed concrete tee beam carrying Sunnyside RD over Redwater River 014 in McCone County, Montana. It was built in 1989, so it is 36 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 173 ft (52.7 m) long and 26 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesSunnyside RD
CrossesRedwater River 014
Location22M SE Wolf Point
RouteCounty Highway 28401
StateMontana
Coordinates48.00775, -105.30931
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 inspectionMarch 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43 US tons
Inventory rating25 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length173 ft (52.7 m)
Longest span85 ft (25.9 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 Sunnyside RD over Redwater River 014 built?

It was built in 1989, making it 36 years old in 2025.

What condition is Sunnyside RD over Redwater River 014 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 March 2023.

How much traffic does Sunnyside RD over Redwater River 014 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Sunnyside RD over Redwater River 014?

The structure is 173 ft (52.7 m) long with a longest span of 85 ft (25.9 m) and a deck 26 ft wide.

Who owns Sunnyside RD over Redwater River 014?

It is owned by the County Highway Agency.