Structure MG12-0.4-I76-A · Morgan County, CO

County Road 12 over Bijou Creek

Carries County Road 12 over Bijou Creek, 0.4 Mi N Of Interstate 76.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT587 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9Substructure 6/9 · sets the rating

587 ft end to end, longest span 64 ft: about 1.6 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.

Built1986rebuilt 2014
Length586.6 ft178.8 m
Daily traffic858counted 2023
Last inspectedNovember 2024every 24 months

Location

StateColorado
CountyMorgan
Location0.4 Mi N Of Interstate 76
CarriesCounty Road 12
CrossesBijou Creek
Coordinates40.24958, -103.92439

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length586.6 ft (178.8 m)
Max Span64.3 ft (19.6 m)
Deck Width32.2 ft (9.8 m)
Deck Area1752.2 sq m
Main Spans9
Year Built1986 (reconstructed 2014)

Traffic

Avg Daily Traffic858 (2023)
Truck Traffic45%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberMG12-0.4-I76-A

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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