US Bridges

Content RD over Sage Creek Overflow 055

PoorPosted for load

Phillips County, Montana · 39M SE Malta · Structure no. L36200040+00001

Built
1983
42 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
28 ft
2 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Content RD over Sage Creek Overflow 055 is a steel stringer/multi-beam or girder carrying Content RD over Sage Creek Overflow 055 in Phillips County, Montana. It was built in 1983, so it is 42 years old, younger 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 4 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 28 ft (8.6 m) long and 20 ft wide. If it were closed, the detour would be 55.9 mi (90 km).

CarriesContent RD
CrossesSage Creek Overflow 055
Location39M SE Malta
RouteCounty Highway 36203
StateMontana
Coordinates47.94131, -107.64556
Functional classRural Minor Collector

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39 US tons
Inventory rating30 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length28 ft (8.6 m)
Longest span15 ft (4.6 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.8 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 closed55.9 mi (90 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$37,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Content RD over Sage Creek Overflow 055 built?

It was built in 1983, making it 42 years old in 2025.

What condition is Content RD over Sage Creek Overflow 055 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 Content RD over Sage Creek Overflow 055 carry?

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

How long is Content RD over Sage Creek Overflow 055?

The structure is 28 ft (8.6 m) long with a longest span of 15 ft (4.6 m) and a deck 20 ft wide.

Who owns Content RD over Sage Creek Overflow 055?

It is owned by the County Highway Agency.