M26-Silver River Culvert

Listed on the National Register of Historic Places in 1999.

From the record

“The M-26-Silver River Culvert is a highway bridge located on M-26 over the Silver River in Eagle Harbor Township, Michigan. The Keweenaw County Road Commission built the bridge in 1930; they also built the US 41-Fanny Hooe Creek Bridge and the M-26-Cedar Creek Culvert around the same time.”
Wikipedia article M-26-Silver River Culvert, CC BY-SA 4.0.

One of 31 National Register listings published here for Keweenaw County · listed in 1999 · 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.
Listed as. M26--Silver River Culvert - the National Register files a house under its owner's surname.
Address. M 26 over Silver River, Eagle Harbor Township, 49950
When was it listed? December 1999
Category. structure
Also known as. Highway Bridges of Michigan MPS
Township. Eagle Harbor township
National Register reference number. 99001527 - 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

2 since 2001

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 2 fires within 5 miles of M26-Silver River Culvert between 2001 and 2019, burning about 1 acre in total. None started naturally. 1 was 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
Arson/incendiarism	1
Equipment and vehicle use	1

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
5 May 2001	Arson/incendiarism	under an acre	Michigan Department of Natural Resources	not named
18 October 2019	Equipment and vehicle use	1.0 acres	Michigan Department of Natural Resources	EAGLE HARBOR TOWNSHIP FD 0000011 - 2019

Every fire recorded in Keweenaw County

Mines and quarries near this property

10 of 17 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 17 workings within 5 miles of M26-Silver River Culvert: 10 past producers, 5 prospects, 2 producers. 2 still produce. What was taken out: Copper, Sand and Gravel, Construction. 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	Recorded
Keweenaw County Road Comm. Pit	Sand and Gravel, Construction	Producer
813 - Mt. Bohemia West	Copper	Prospect	Chalcocite
Agate Harbor Mine	Copper	Past Producer	1846, 1854
Amygdaloid Cu Mine	Copper	Past Producer
Connecticut Fissure	Copper	Past Producer	Copper
Delaware Copper Mine	Copper	Past Producer
Delaware Mine	Copper	Past Producer	1847, 1886
Drexel Fissure	Copper	Producer	Copper
Eagle Harbor Mines	Copper	Past Producer	1864, 1866
Medora Mine	Copper	Past Producer	1851, 1909

Every working recorded in Keweenaw 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.

Listed places nearby

6 within 8 miles

Other National Register properties close enough to walk or drive between, ordered by distance from this one. Both positions come from the same geocoding pass that matched these properties to their map sheets.

Property	Distance	Listed
Eagle Harbor Coast Guard Station Boathouse	3.6 miles	2012
M 26-Cedar Creek Culvert	3.7 miles	1999
Brockway Mountain Drive	4.0 miles	2017
Eagle Harbor Light Station	4.1 miles	1984
Eagle Harbor Schoolhouse	4.2 miles	1972
Holy Redeemer Church	4.4 miles	1972

Sources for this property

National Archives record	The nomination case file for reference 99001527 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
Keweenaw County	All 31 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.