ETR Big Island Bridge

Listed on the National Register of Historic Places in 1985.

From the record

“The ETR Big Island Bridge is a Pratt through truss bridge located near Green River, Wyoming, which carries Sweetwater County Road CN4-4 across the Green River. The bridge was built from 1909 to 1910 by contractor Charles G.”
Wikipedia article ETR Big Island Bridge, CC BY-SA 4.0.

One of 28 National Register listings published here for Sweetwater County · listed in 1985 · 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. Cty. Rd. CN4-4, Green River, 82935
When was it listed? February 1985
Category. structure
Also known as. Vehicular Truss and Arch Bridges in Wyoming TR
Census division. Green River North
National Register reference number. 85000440 - 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

8 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 8 fires within 5 miles of ETR Big Island Bridge between 1992 and 2019, burning about 62 acres in total. 3 started naturally. None 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
Missing data/not specified/undetermined	3
Natural	3
Recreation and ceremony	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
8 August 2010	Natural	13 acres	Rock Springs Field Office	RIVER
31 August 1992	Recreation and ceremony	under an acre	Rock Springs Field Office	RHONEPOULE
23 July 2003	Natural	under an acre	Seedskadee National Wildlife Refuge	LONE TREE
30 June 2009	Natural	under an acre	Rock Springs Field Office	BIG ISLAND BRIDGE
15 June 2018	Missing data/not specified/undetermined	under an acre	Rock Springs Field Office	DEMMING
6 October 2019	Missing data/not specified/undetermined	48 acres	Rock Springs Field Office	BIG ISLAND
30 October 2017	Missing data/not specified/undetermined	under an acre	Rock Springs Field Office	CINER
3 October 1996	Recreation and ceremony	under an acre	Seedskadee National Wildlife Refuge	BIGISLAN96

Every fire recorded in Sweetwater County

Mines and quarries near this property

5 within 5 miles

Regional context, not property-specific evidence. The federal mineral resources record lists 5 workings within 5 miles of ETR Big Island Bridge: 3 past producers, 1 producer, 1 unknown. 1 still produces. What was taken out: Sand and Gravel, Construction, Stone, Crushed/Broken, Soda Ash, Sodium Carbonate, Oil Shale, Halite. 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
OCI	Soda Ash, Sodium Carbonate, Oil Shale, Halite	Producer	1938, 1962
State Highway Dept	Stone, Crushed/Broken	Past Producer
State Highway Dept	Silica	Unknown
State Highway Dept	Sand and Gravel, Construction	Past Producer
Unknown Gravel Pit	Sand and Gravel, Construction	Past Producer

Every working recorded in Sweetwater County

Storms near this property

15 since 1998

Regional context, not property-specific evidence. The National Weather Service names Green River, the town this property stands in, in 15 storm reports between 1998 and 2025: 9 thunderstorm wind, 4 hail, 1 funnel cloud, 1 flash flood. 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
August 2007	Flash Flood	Green River	$250,000	no account filed
May 2014	Thunderstorm Wind	Green River	$3,000	Several power poles were reported down west-northwest of Green River toward State Highway 372. The wind gusts were associated with weak convection and not a thunderstorm.
June 2024	Thunderstorm Wind	Green River	-	The wind sensor along Interstate 80 in Green River reported wind gusts to 59 mph.
June 2016	Hail	Green River	-	There were numerous reports of one inch diameter hail across Green River and Rock Springs. Trees were stripped of leaves and the hail accumulated on the ground to a depth of a couple of inches.
June 2025	Thunderstorm Wind	Green River	-	no account filed
July 2005	Thunderstorm Wind	Green River	-	no account filed
June 2005	Thunderstorm Wind	Green River	-	no account filed
July 2004	Thunderstorm Wind	Green River	-	no account filed
June 2004	Hail	Green River	-	no account filed
July 2003	Hail	Green River	-	no account filed
June 2002	Thunderstorm Wind	Green River	-	no account filed
June 2001	Thunderstorm Wind	Green River	-	no account filed
August 2000	Thunderstorm Wind	Green River	-	no account filed
September 1999	Funnel Cloud	Green River	-	no account filed
June 1998	Hail	Green River	-	no account filed

Every storm recorded in Sweetwater 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 85000440 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
Sweetwater County	All 28 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.