Structure E-16-RS · Jefferson County, CO

SH 58 Ramp over I70ml/ Sh58 Ml/clr Crk

Carries SH 58 Ramp over I70ml/ Sh58 Ml/clr Crk, I-70 & SH 58 Intercha.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,115 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

2,115 ft end to end, longest span 235 ft: about 5.9 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 box-beam bridge.

Built200818 years old
Length2115.2 ft644.7 m
Daily traffic34,000counted 2020
Last inspectedJune 2023every 24 months

Location

StateColorado
CountyJefferson
LocationI-70 & SH 58 Intercha
CarriesSH 58 Ramp
CrossesI70ml/ Sh58 Ml/clr Crk
Coordinates39.77285, -105.14275

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Single/Spread
Total Length2115.2 ft (644.7 m)
Max Span234.9 ft (71.6 m)
Deck Width38.1 ft (11.6 m)
Deck Area7478.5 sq m
Main Spans11
Year Built2008

Traffic

Avg Daily Traffic34,000 (2020)
Truck Traffic12%
Lanes On Bridge1
Lanes Under Bridge9

Inspection & Ownership

Last InspectionJune 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-RS

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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