Structure B36018900000000 · Manitowoc County, WI

Lrd 17th Street over E Twin River

Carries Lrd 17th Street over E Twin River, 0.2m E Jct Sth 42.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT270 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

270 ft end to end: about 4 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 bascule bridge (drawn closed).

Built201313 years old
Length270.3 ft82.4 m
Daily traffic2,000counted 2021
Last inspectedOctober 2024every 24 months

Location

StateWisconsin
CountyManitowoc
Location0.2m E Jct Sth 42
CarriesLrd 17th Street
CrossesE Twin River
Coordinates44.14870, -87.56391

Physical Characteristics

MaterialSteel
DesignMovable - Bascule
Total Length270.3 ft (82.4 m)
Max Span102.0 ft (31.1 m)
Deck Width51.8 ft (15.8 m)
Deck Area1301.9 sq m
Main Spans1
Year Built2013

Traffic

Avg Daily Traffic2,000 (2021)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberB36018900000000

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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