Rock Point Bridge

Photos 

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Rock Point Bridge Photo taken by Michael Goff in March 2009 View high-res version

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Main Arch Span Photo taken by Michael Goff in March 2009 View high-res version

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Main Arch Span Photo taken by Michael Goff in March 2009 View high-res version

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Rock Point Bridge Looking upstream Photo taken by Michael Goff in March 2009 View high-res version

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Rocky Point Bridge Photo taken by Michael Goff on September 23, 2007 View high-res version

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Rock Point Bridge from Northwest Photo taken by Michael Goff on March 22, 2007 View high-res version

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Rock Point Bridge from Northeast Photo taken by Michael Goff on September 23, 2007 View high-res version

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Rail Details Photo taken by Michael Goff on September 23, 2007 View high-res version

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Photo taken by Historic American Engineering Record View photos at Library of Congress

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Photo taken by Historic American Engineering Record View photos at Library of Congress

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General View From Southwest Photo taken by Historic American Engineering Record View photos at Library of Congress

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General View From Southeast Photo taken by Historic American Engineering Record View photos at Library of Congress

Map 

Facts 

Overview

Concrete arch bridge over Rogue River on OR 99

Location

Jackson County, Oregon

Status

Open to traffic

Future prospects

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.

History

Built 1919, Rehab 2009

Builders

- Conde B. McCullough (Bridge Engineer)
- Parker & Banfield (Contractor)
- Wildish Standard Paving (Rehabilitation Contractor)

Design

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
• Rock Point Bridge HAER Webpage
• Rock Point Bridge Rehabilitation - ODOT Rock Point Bridge Rehab. Project Page
• HAER OR-29 - Rock Point Arch Bridge, Spanning Rogue River & Old Pacific Highway, Route , Gold Hill, Jackson County, OR

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