Eagle River Timber Bridge
Eagle River Timber Bridge | |
|---|---|
 | |
| Coordinates | 47°24′45″N 88°17′49″W / 47.4125°N 88.297°W |
| Carries | Automobiles |
| Crosses | Eagle River |
| Locale | Eagle River, Michigan |
| Other name(s) | Eagle River Bridge |
| ID number | 42142021000B050[1] |
| Preceded by | Lake Shore Drive Bridge |
| Characteristics | |
| Material | Wood and steel |
| Total length | 152 feet (46 m)[2] |
| Width | 35 feet (11 m)[1] |
| Height | 50 feet (15 m)[2] |
| Longest span | 79 feet (24 m)[a] |
| History | |
| Construction start | 1988 |
| Opened | 1990 |
| Statistics | |
| Daily traffic | 849 (in 2007)[1] |
| Location | |
 | |
The Eagle River Timber Bridge is a wooden arch bridge carrying highway M-26 over the Eagle River in Eagle River, Michigan. It opened in 1990 as a replacement for the historic Lake Shore Drive Bridge that runs parallel to it.
History
Construction on the bridge began in 1988.[1][3] The quantity of wood used was equivalent to three or four average-size houses.[2] The bridge opened for highway M-26 traffic in 1990, at which point the neighboring Lake Shore Drive Bridge was restricted to pedestrian use.[4]
On August 26, 1992, the bridge was entered into the 1992 Timber Bridge Design and Construction Award Competition.[5] It was awarded first place in the "Long Span Vehicular Bridges" category.[6]
Design
The bridge is primarily constructed of wood joined together with steel connectors. It is supported by two adjacent arches: one spans 74 feet (23 m) and the other 79 feet (24 m). Each arch is constructed from two curved sections joined together by a crown hinge. The road deck is made of wood and covered by an asphalt road surface.[2]
All the timber members were structural glued laminated and pressure treated with preservative
Bridge maintenance consists of reapplying preservative to all wooden members and any necessary tightening of bolts.[2]
Notes
References
- ^ a b c d Conro, Steve (October 9, 2011). "Eagle River Bridge". BridgeHunter.com: Historic Bridges of the US. Retrieved January 1, 2012.
- ^ a b c d e f g Ness, Brian (June 1991). "The Eagle River Timber Bridge". Mates (54). Retrieved January 1, 2012.
- ^ Staff (October 1, 2011). Highway Bridge Report (PDF) (Report). Michigan Department of Transportation. p. 61. Retrieved January 1, 2012.
- ^ Staff. "Lake Shore Drive Bridge". State Historic Preservation Office. Michigan State Housing Development Authority. Archived from the original on June 12, 2012. Retrieved December 31, 2011.
- ^ Bukoski, Glenn (November 1992). "1992 Member Bridge Award Competition". Mates (69). Retrieved January 1, 2012.
- ^ "Timber Bridge Design Awards Announce" (PDF). Crossings. Timber Bridge Information Resource Center. February 1994. p. 2. Retrieved January 2, 2012.
Further reading
- Washtenaw Impressions - March 1996 Contains brief mention on page 2
External links
Media related to Eagle River Timber Bridge at Wikimedia Commons
