Structure 2C 685 · Sevier County, UT

I-70 (sr-70) Ebl over Mill Creek

Carries I-70 (sr-70) Ebl over Mill Creek, 1.0 Mile West Belknap Int.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT553 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

553 ft end to end, longest span 210 ft: about 1.5 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.

Built1982rebuilt 2019
Length553.1 ft168.6 m
Daily traffic5,328counted 2022
Last inspectedMay 2023every 24 months

Location

StateUtah
CountySevier
Location1.0 Mile West Belknap Int
CarriesI-70 (sr-70) Ebl
CrossesMill Creek
Coordinates38.54806, -112.38139

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length553.1 ft (168.6 m)
Max Span210.0 ft (64 m)
Deck Width44.0 ft (13.4 m)
Deck Area2259.2 sq m
Main Spans3
Year Built1982 (reconstructed 2019)

Traffic

Avg Daily Traffic5,328 (2022)
Truck Traffic46%
Lanes On Bridge2
Lanes Under Bridge1

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number2C 685

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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