Structure 85006700.4020A · Montrose County, CO

Trout Road over Uncompahgre River

Carries Trout Road over Uncompahgre River, 0.25 M E Of SH 550.

Overall conditionGood

Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT75 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 7/9 · sets the rating

75 ft end to end. Lengths and the car 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 tee-beam bridge.

Built198937 years old
Length74.8 ft22.8 m
Daily traffic259counted 2022
Last inspectedNovember 2023every 24 months

Location

StateColorado
CountyMontrose
Location0.25 M E Of SH 550
CarriesTrout Road
CrossesUncompahgre River
Coordinates38.39195, -107.82387

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length74.8 ft (22.8 m)
Max Span71.9 ft (21.9 m)
Deck Width33.1 ft (10.1 m)
Deck Area230.3 sq m
Main Spans1
Year Built1989

Traffic

Avg Daily Traffic259 (2022)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number085006700.4020A

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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