Rating:
No votes cast

Pontiac Road Bridge

Photos 

Photo taken by Janis Ford January 2008

Enlarge

BH Photo #131774

Map 

Facts 

Overview
Concrete arch bridge over Sylvan Lake on Pontiac Road in Sylvan Lake
Location
Oakland County, Michigan
Status
Open to traffic
History
Built ca. 1900
Design
Closed-spandrel concrete arch
Dimensions
Length of largest span: 27.9 ft.
Total length: 35.8 ft.
Deck width: 18.0 ft.
Approximate latitude, longitude
+42.61861, -83.33417   (decimal degrees)
42°37'07" N, 83°20'03" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/308568/4721104 (zone/easting/northing)
Quadrangle map:
Pontiac South
Inventory numbers
MINBI 635660600022B01 (Michigan bridge number on the National Bridge Inventory 2010 and before)
MINEW 08306 (Michigan bridge number on the National Bridge Inventory 2011 and later)
BH 20186 (Bridgehunter.com ID)
Inspection (as of 07/2008)
Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 61.5 (out of 100)
Average daily traffic (as of 1978)
50

Categories 

Arch (11,192)
Closed-spandrel arch (3,602)
Deck arch (10,431)
Michigan (880)
Oakland County, Michigan (17)
Open (36,537)
Owned by city (4,487)
Span length 25-50 feet (13,559)
Total length 25-50 feet (9,841)

Update Log 

  • October 23, 2016: New photos from Rick McOmber

Sources