Structure HU611-1.1-S69 · Huerfano County, CO

County Road 611 over Ojo De Alamo Arroyo

Carries County Road 611 over Ojo De Alamo Arroyo, 1.0 Mi N Of SH 69.

Overall conditionFair

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

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
24 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 24 ft across with 2 openings. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built197551 years old
Length24.3 ft7.4 m
Daily traffic28counted 2022
Last inspectedJanuary 2025every 24 months

Location

StateColorado
CountyHuerfano
Location1.0 Mi N Of SH 69
CarriesCounty Road 611
CrossesOjo De Alamo Arroyo
Coordinates37.72823, -104.89337

Physical Characteristics

MaterialAluminum/Wrought Iron/Cast Iron
DesignCulvert
Total Length24.3 ft (7.4 m)
Max Span10.2 ft (3.1 m)
Deck Width53.1 ft (16.2 m)
Deck Area119.9 sq m
Main Spans2
Year Built1975

Traffic

Avg Daily Traffic28 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure NumberHU611-1.1-S69

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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