Structure P00001446+10161 · Phillips County, MT

IRR - US 2 over Peoples Creek Overflow

Carries IRR - US 2 over Peoples Creek Overflow, 6m W Dodson.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT133 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 6/9

133 ft end to end, longest span 65 ft. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built197254 years old
Length132.5 ft40.4 m
Daily traffic1,327counted 2023
Last inspectedMarch 2024every 24 months

Location

StateMontana
CountyPhillips
Location6m W Dodson
CarriesIRR - US 2
CrossesPeoples Creek Overflow
Coordinates48.40736, -108.39583

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length132.5 ft (40.4 m)
Max Span65.0 ft (19.8 m)
Deck Width46.3 ft (14.1 m)
Deck Area569.6 sq m
Main Spans2
Year Built1972

Traffic

Avg Daily Traffic1,327 (2023)
Truck Traffic13%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberP00001446+10161

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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