Structure FRCO 168-106A · Fremont County, CO

CR 168/4 Mile LN over Dry Arroyo

Carries CR 168/4 Mile LN over Dry Arroyo, .1 Mi N Of US 50.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure9/9 · Excellent
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT60 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 9/9Substructure 6/9 · sets the rating

60 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 multi-beam bridge.

Built200026 years old
Length59.7 ft18.2 m
Daily traffic398counted 2022
Last inspectedFebruary 2025every 24 months

Location

StateColorado
CountyFremont
Location.1 Mi N Of US 50
CarriesCR 168/4 Mile LN
CrossesDry Arroyo
Coordinates38.44871, -105.17764

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length59.7 ft (18.2 m)
Max Span55.8 ft (17 m)
Deck Width30.5 ft (9.3 m)
Deck Area169.3 sq m
Main Spans1
Year Built2000

Traffic

Avg Daily Traffic398 (2022)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberFRCO 168-106A

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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