Structure SMGU29-0.9-9A · San Miguel County, CO

County Road U29 over Dry Creek

Carries County Road U29 over Dry Creek, 1 Mi S Of SH 14.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

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

A culvert 21 ft across. 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.

Built199135 years old
Length20.7 ft6.3 m
Daily traffic3counted 2022
Last inspectedJune 2024every 24 months

Location

StateColorado
CountySan Miguel
Location1 Mi S Of SH 14
CarriesCounty Road U29
CrossesDry Creek
Coordinates38.06592, -108.55786

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length20.7 ft (6.3 m)
Max Span20.7 ft (6.3 m)
Deck Width87.9 ft (26.8 m)
Deck Area168.8 sq m
Main Spans1
Year Built1991

Traffic

Avg Daily Traffic3 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberSMGU29-0.9-9A

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.