Structure B36051100000000 · Manitowoc County, WI

Lrd Tisch Mills RD over E Twin River

Carries Lrd Tisch Mills RD over E Twin River, 0.1m S Jct Cth Bb.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT75 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

75 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.

Built1938rebuilt 1991
Length74.8 ft22.8 m
Daily traffic660counted 2024
Last inspectedSeptember 2024every 24 months

Location

StateWisconsin
CountyManitowoc
Location0.1m S Jct Cth Bb
CarriesLrd Tisch Mills RD
CrossesE Twin River
Coordinates44.32552, -87.62447

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length74.8 ft (22.8 m)
Max Span70.5 ft (21.5 m)
Deck Width31.2 ft (9.5 m)
Deck Area216.6 sq m
Main Spans1
Year Built1938 (reconstructed 1991)

Traffic

Avg Daily Traffic660 (2024)
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberB36051100000000

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