Historic Bridges
of the United States
Black River Bridge
St. Clair County
,
Michigan
Overview
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Facts
Overview
Bascule bridge over Black River on 7th Street in Port Huron
Location
St. Clair County
,
Michigan
Status
Open to traffic
History
Built 1933
Design
Bascule
Dimensions
Total length: 272.3 ft.
Inventory number
BH 20229
(Bridgehunter.com ID)
Inspection
(as of 05/2007)
Deck condition rating:
Poor
(4 out of 9)
Superstructure condition rating:
Serious
(3 out of 9)
Substructure condition rating:
Serious
(3 out of 9)
Appraisal:
Structurally deficient
Sufficiency rating: 37.4
(out of 100)
Average daily traffic
(as of 2006)
7,227
Categories
Bascule
(455)
Built 1933
(365)
Built during 1930s
(7,082)
Michigan
(435)
Movable
(856)
Navigable waterway
(1,258)
Open
(23,114)
Owned by city
(2,131)
St. Clair County, Michigan
(13)
Structurally deficient
(14,997)
Total length 250-500 feet
(2,408)
Sources
Michigan DOT Historic Bridges
- 7th St. Bridge page of the MDOT Historical Bridges listings
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