Structure 1189 · Branch County, MI

Broadway Street over ST Joseph River

Carries Broadway Street over ST Joseph River, In Village Of Union City.

Overall conditionGood

Set by its lowest-rated component: Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure9/9 · Excellent
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT136 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 9/9Substructure 7/9 · sets the rating

136 ft end to end, longest span 66 ft. 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.

Built1978rebuilt 2017
Length136.2 ft41.5 m
Daily traffic3,315counted 2016
Last inspectedJuly 2023every 24 months

Location

StateMichigan
CountyBranch
LocationIn Village Of Union City
CarriesBroadway Street
CrossesST Joseph River
Coordinates42.06577, -85.13413

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Single/Spread
Total Length136.2 ft (41.5 m)
Max Span65.9 ft (20.1 m)
Deck Width44.3 ft (13.5 m)
Deck Area560.2 sq m
Main Spans2
Year Built1978 (reconstructed 2017)

Traffic

Avg Daily Traffic3,315 (2016)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour Critical8 — Stable, low risk
Structure Number000000000001189

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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