Structure E-16-ME · Adams County, CO

I 76 Ml Wbnd over 60th AVE & Ditch

Carries I 76 Ml Wbnd over 60th AVE & Ditch, 3.8 Mi E Of I70 + I76 Int.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT618 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

618 ft end to end, longest span 140 ft: about 1.7 football fields. Lengths and the semi-truck 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.

Built198838 years old
Length618.1 ft188.4 m
Daily traffic38,500counted 2020
Last inspectedApril 2023every 24 months

Location

StateColorado
CountyAdams
Location3.8 Mi E Of I70 + I76 Int
CarriesI 76 Ml Wbnd
Crosses60th AVE & Ditch
Coordinates39.80464, -105.01633

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length618.1 ft (188.4 m)
Max Span140.1 ft (42.7 m)
Deck Width41.0 ft (12.5 m)
Deck Area2,355 sq m
Main Spans5
Year Built1988

Traffic

Avg Daily Traffic38,500 (2020)
Truck Traffic9%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberE-16-ME

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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