Office Bridge

Listed on the National Register of Historic Places in 1979.

From the record

“The Office Bridge is a covered bridge in Westfir, Lane County, Oregon, U.S. crossing the North Fork Middle Fork Willamette River at the south end of the Aufderheide National Scenic Byway and edge of the Willamette National Forest. It is Oregon's longest covered bridge at 180 ft, and is one of only two in the state using triple Howe truss construction.”
Wikipedia article Office Bridge, CC BY-SA 4.0.

One of 123 National Register listings published here for Lane County · listed in 1979 · category: Structure.

Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service

The listing

What is counted as historic. The nomination lists 1 structure as contributing to the listing.
Address. Crosses N. Fork Middle Fork Willamette River, Westfir, 97492
When was it listed? November 1979
Category. structure
Also known as. Oregon Covered Bridges TR
Census division. Oakridge
National Register reference number. 79003768 - the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.

Fires near this property

160 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 160 fires within 5 miles of Office Bridge between 1992 and 2020, burning about 6,696 acres in total. 48 started naturally. 10 were recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

Reported cause	Fires
Natural	48
Recreation and ceremony	28
Missing data/not specified/undetermined	22
Debris and open burning	11
Equipment and vehicle use	11
Arson/incendiarism	10
Smoking	8
Power generation/transmission/distribution	7
Misuse of fire by a minor	6
Railroad operations and maintenance	4
Fireworks	3
Other causes	2

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Date	Cause	Size	Reported by	Name on the report
9 September 2017	Natural	under an acre	Willamette National Forest	LARSON
9 September 2000	Other causes	under an acre	East Lane Unit - ODF	SOUTH HIGH PRAIRIE
8 September 2011	Natural	1.0 acres	Willamette National Forest	DECEPTION 1
8 September 2011	Natural	under an acre	Willamette National Forest	DECEPTION 2
5 September 2020	Missing data/not specified/undetermined	9.0 acres	Willamette National Forest	LA DUKE
4 September 2006	Recreation and ceremony	under an acre	Willamette National Forest	BLACK CAMP
3 September 2006	Railroad operations and maintenance	under an acre	Willamette National Forest	BUCKHEAD R-R
3 September 2003	Power generation/transmission/distribution	2.7 acres	East Lane Unit - ODF	BAR-B-L

Every fire recorded in Lane County

Mines and quarries near this property

10 of 12 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 12 workings within 5 miles of Office Bridge: 7 past producers, 5 producers. 5 still produce. What was taken out: Sand and Gravel, Construction, Stone, Crushed/Broken, Stone. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Site	Commodity	Status
Dunning Road	Stone	Past Producer
Quarry	Stone	Past Producer
Dunning Road Quarry	Stone, Crushed/Broken	Producer
Oakridge Pit & Plant	Stone, Crushed/Broken	Producer
Unnamed Quarry	Stone, Crushed/Broken	Past Producer
Gravel Pit	Sand and Gravel, Construction	Past Producer
Gravel Pit	Sand and Gravel, Construction	Past Producer
Oakridge Pit & Plant	Sand and Gravel, Construction	Past Producer
Salmon Creek	Sand and Gravel, Construction	Past Producer
Salmon Creek Pit	Sand and Gravel, Construction	Producer

Every working recorded in Lane County

Storms near this property

1 since 2010

Regional context, not property-specific evidence. The National Weather Service names Westfir, the town this property stands in, in 1 storm report in 2010: 1 thunderstorm wind. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

When	Event	Place named	Harm	What the report says
October 2010	Thunderstorm Wind	Westfir	-	A thunderstorm produced strong winds at Springfield and Eugene, Oregon with gusts to 51 kt. A tree was also blown down by strong winds near Oakridge, OR.

Every storm recorded in Lane County

Map coverage status

No historic map-sheet match is published for this property yet. That does not mean no map exists. This record needs a coordinate-quality review before it can be joined to a sheet boundary. Browse the county's mapped places while that work is pending.

Sources for this property

National Archives record	The nomination case file for reference 79003768 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
Lane County	All 123 listed properties in this county.

Provenance

Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.