Structure 107036000.30761 · Routt County, CO

County Road 360 over Yampa River

Carries County Road 360 over Yampa River, 0.3 Mi W Of US HWY 40.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT114 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

114 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 through arch.

Built199828 years old
Length113.8 ft34.7 m
Daily traffic2,519counted 2023
Last inspectedOctober 2024every 24 months

Location

StateColorado
CountyRoutt
Location0.3 Mi W Of US HWY 40
CarriesCounty Road 360
CrossesYampa River
Coordinates40.45939, -106.82647

Physical Characteristics

MaterialWood or Timber
DesignArch - Thru
Total Length113.8 ft (34.7 m)
Max Span109.9 ft (33.5 m)
Deck Width42.0 ft (12.8 m)
Deck Area444.2 sq m
Main Spans1
Year Built1998

Traffic

Avg Daily Traffic2,519 (2023)
Truck Traffic23%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number107036000.30761

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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