Structure 1963 · Clinton County, MI

Townsend Road over Lost Creek

Carries Townsend Road over Lost Creek, 0.7 Mi W Of Jones RD.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT29 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

29 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 box-beam bridge.

Built1920rebuilt 1987
Length28.9 ft8.8 m
Daily traffic138counted 2011
Last inspectedOctober 2023every 24 months

Location

StateMichigan
CountyClinton
Location0.7 Mi W Of Jones RD
CarriesTownsend Road
CrossesLost Creek
Coordinates42.98799, -84.83023

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length28.9 ft (8.8 m)
Max Span26.9 ft (8.2 m)
Deck Width18.0 ft (5.5 m)
Deck Area48.4 sq m
Main Spans1
Year Built1920 (reconstructed 1987)

Traffic

Avg Daily Traffic138 (2011)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000000001963

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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