Structure FCPROS-0.5-I25A · Larimer County, CO

Prospect Avenue over Box Elder Creek

Carries Prospect Avenue over Box Elder Creek, 0.5 Mi West Of I25.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT39 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 39 ft across with 2 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.

Built201610 years old
Length38.7 ft11.8 m
Daily traffic20,967counted 2023
Last inspectedJune 2023every 24 months

Location

StateColorado
CountyLarimer
Location0.5 Mi West Of I25
CarriesProspect Avenue
CrossesBox Elder Creek
Coordinates40.56672, -105.00717

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length38.7 ft (11.8 m)
Max Span18.0 ft (5.5 m)
Deck Width105.6 ft (32.2 m)
Deck Area380.0 sq m
Main Spans2
Year Built2016

Traffic

Avg Daily Traffic20,967 (2023)
Truck Traffic4%
Lanes On Bridge3

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberFCPROS-0.5-I25A

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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