US Bridges

Youth Ranch RD over Whitewater Creek 110

PoorPosted for load

Phillips County, Montana · 8M S Whitewater · Structure no. L36023003+04001

Built
1977
48 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
3 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Youth Ranch RD over Whitewater Creek 110 is a steel stringer/multi-beam or girder carrying Youth Ranch RD over Whitewater Creek 110 in Phillips County, Montana. It was built in 1977, so it is 48 years old, older than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 90 ft (27.4 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesYouth Ranch RD
CrossesWhitewater Creek 110
Location8M S Whitewater
RouteCounty Highway 36326
StateMontana
Coordinates48.68664, -107.60703
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15 US tons
Inventory rating12 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans3
Design loadUnknown
Structure length90 ft (27.4 m)
Longest span29 ft (8.8 m)
Deck width27 ft (8.3 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$108,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Youth Ranch RD over Whitewater Creek 110 built?

It was built in 1977, making it 48 years old in 2025.

What condition is Youth Ranch RD over Whitewater Creek 110 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Youth Ranch RD over Whitewater Creek 110 carry?

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

How long is Youth Ranch RD over Whitewater Creek 110?

The structure is 90 ft (27.4 m) long with a longest span of 29 ft (8.8 m) and a deck 27 ft wide.

Who owns Youth Ranch RD over Whitewater Creek 110?

It is owned by the County Highway Agency.