Structure 1520005P0000000 · Larimer County, CO

U.s. Route 34 over Fall River

Carries U.s. Route 34 over Fall River, 2.0 Miles West Of Fall Ri.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT28 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

28 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 tee-beam bridge.

Built198343 years old
Length27.9 ft8.5 m
Daily traffic3,310counted 2019
Last inspectedOctober 2024every 24 months

Location

StateColorado
CountyLarimer
Location2.0 Miles West Of Fall Ri
CarriesU.s. Route 34
CrossesFall River
Coordinates40.40486, -105.62558

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length27.9 ft (8.5 m)
Max Span25.9 ft (7.9 m)
Deck Width29.9 ft (9.1 m)
Deck Area77.3 sq m
Main Spans1
Year Built1983

Traffic

Avg Daily Traffic3,310 (2019)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerNational Park Service
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number1520005P0000000

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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