The Rock Point Bridge will under go substantial rehabilitation from Fall 2009 until Spring 2010.
The rehabilitation will include upgrading the deck, repair cracked/spalled concrete and replace the railing.
The Rock Point Bridge is an early major arch bridge completed under the design auspices of Conde B. McCullough, Oregon’s noted bridge engineer. McCullough designed the Rock Point Bridge, originally on the old Pacific Highway, to conform with and complement the local landscape. The structure is 505 feet in length, and the main span is a single 113 foot open-spandrel, rib-type reinforced concrete deck arch. The structure has curved arch fascia curtain walls. The railing on the original main span is an urn-shaped balustrade with a band of dentils below. The ends of the main piers are bushhammered for textured contrast. The structure replaced a timber Howe truss covered bridge. The bridge was built by Parker and Banfield, Portland. Because of the great depth of the water at the bridge location, it was impossible to build falsework under the main arch span. The contractor solved the problem by building a temporary wood truss span over the river to give support to the forms.
(Historic Highway Bridges of Oregon, 1989)
Dimensions
Length of largest span: 112.9 ft.
Total length: 504.9 ft.
Deck width: 19.0 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+42.43222, -123.09028(decimal degrees) 42°25'56" N, 123°05'25" W (degrees°minutes'seconds")
Approximate UTM coordinates
10/492574/4697771 (zone/easting/northing)
USGS topographic map
Gold Hill
Inventory number
BH 29993 (Bridgehunter.com ID)
Inspection (as of 08/2007)
Deck condition rating: Satisfactory(6 out of 9) Superstructure condition rating: Poor(4 out of 9) Substructure condition rating: Fair(5 out of 9) Appraisal: Structurally deficient
Sufficiency rating: 12.7 (out of 100)
Average daily traffic (as of 2006)
2,369
Categories
Update Log
October 21, 2009: Updated by Michael Goff: added rehab information and bridge design/history info.
April 20, 2009: Posted HAER photos
December 15, 2008: New photos from Michael Goff
November 17, 2008: Updated by Michael Goff
July 8, 2008: Updated by Michael Goff
June 12, 2008: Updated by Michael Goff
Sources
Michael Goff - michael [dot] goff [at] odot [dot] state [dot] or [dot] us