Structure P-02-E · Montezuma County, CO

Irr# US 491 Ml over Chimney Rock Draw

Carries Irr# US 491 Ml over Chimney Rock Draw, 5.6 Mi N Of New Mexico.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT40 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 40 ft across with 3 openings. 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, so those are drawn as typical for a culvert.

Built195769 years old
Length40.4 ft12.3 m
Daily traffic4,000counted 2018
Last inspectedFebruary 2025every 24 months

Location

StateColorado
CountyMontezuma
Location5.6 Mi N Of New Mexico
CarriesIrr# US 491 Ml
CrossesChimney Rock Draw
Coordinates37.07932, -108.73654

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length40.4 ft (12.3 m)
Max Span9.8 ft (3 m)
Deck Width71.9 ft (21.9 m)
Deck Area269.4 sq m
Main Spans3
Year Built1957

Traffic

Avg Daily Traffic4,000 (2018)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberP-02-E

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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