Structure 3958 · Ingham County, MI

Beech Street over Red Cedar River

Carries Beech Street over Red Cedar River, In The City Of Lansing.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
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 FT159 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 7/9

159 ft end to end, longest span 62 ft: about 2 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 box-beam bridge.

Built200719 years old
Length159.1 ft48.5 m
Daily traffic1,580counted 2001
Last inspectedOctober 2023every 24 months

Location

StateMichigan
CountyIngham
LocationIn The City Of Lansing
CarriesBeech Street
CrossesRed Cedar River
Coordinates42.72127, -84.54440

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length159.1 ft (48.5 m)
Max Span62.0 ft (18.9 m)
Deck Width37.7 ft (11.5 m)
Deck Area557.8 sq m
Main Spans3
Year Built2007

Traffic

Avg Daily Traffic1,580 (2001)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000003958

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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