Structure 6950 · Midland County, MI

M-30 (meridian Rd) over Pine River

Carries M-30 (meridian Rd) over Pine River, 0.1 Miles Of Pine River R.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT182 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 6/9

182 ft end to end, longest span 58 ft: about 3 semi-trucks nose to tail. 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.

Built195274 years old
Length181.8 ft55.4 m
Daily traffic5,845counted 2014
Last inspectedSeptember 2024every 12 months

Location

StateMichigan
CountyMidland
Location0.1 Miles Of Pine River R
CarriesM-30 (meridian Rd)
CrossesPine River
Coordinates43.56380, -84.36962

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length181.8 ft (55.4 m)
Max Span57.7 ft (17.6 m)
Deck Width34.8 ft (10.6 m)
Deck Area587.2 sq m
Main Spans3
Year Built1952

Traffic

Avg Daily Traffic5,845 (2014)
Truck Traffic30%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000000006950

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.

Nearby Bridges