Labo Del Rio Bridge

Built in 1913. Listed on the National Register of Historic Places in 1985.

From the record

“The Labo Del Rio Bridge, over the Piedra River near Arboles, Colorado, was designed and built in 1913 by the Missouri Valley Bridge Company with steel by the Illinois Steel Company. It has also been known as Bridge over Piedra River.”
Wikipedia article Labo Del Rio Bridge, CC BY-SA 4.0.

One of 2 National Register listings published here for Archuleta County · listed in 1985 · category: Structure · built in 1913.

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. F40 over Piedra River, Arboles, 81122
When was it listed? June 1985
Category. structure
Also known as. Vehicular Bridges in Colorado TR
Census division. Arboles
When was it built? 1913
National Register reference number. 85001399 - 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

189 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 189 fires within 5 miles of Labo Del Rio Bridge between 1992 and 2020, burning about 2,152 acres in total. 173 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
Natural	173
Missing data/not specified/undetermined	14
Equipment and vehicle use	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 1994	Natural	under an acre	Southern Ute Agency	ELROY
7 September 2018	Natural	under an acre	Southern Ute Agency	ARBOLES BOWL
7 September 2004	Natural	under an acre	Southern Ute Agency	GALLEGOS
5 September 2000	Natural	under an acre	Southern Ute Agency	N ARBOLES
4 September 2013	Natural	12 acres	Southern Ute Agency	SHEEP RIDGE
3 September 2007	Natural	under an acre	Southern Ute Agency	NM 38
3 September 2007	Natural	under an acre	Southern Ute Agency	BIKER
3 September 1996	Natural	under an acre	Southern Ute Agency	SCOGGINS

Every fire recorded in Archuleta County

Mines and quarries near this property

1 within 5 miles

Regional context, not property-specific evidence. The federal mineral resources record lists 1 working within 5 miles of Labo Del Rio Bridge: 1 past producer. None of them still produces. What was taken out: 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.

Where	Site	Commodity	Status	Recorded
	Gravel Pit	Sand and Gravel, Construction	Past Producer

Every working recorded in Archuleta County

Storms near this property

8 since 1999

Regional context, not property-specific evidence. The National Weather Service names Arboles, the town this property stands in, in 8 storm reports between 1999 and 2025: 3 thunderstorm wind, 1 heavy rain, 1 hail, 1 debris flow. 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
September 2025	Flash Flood	Arboles	$30,000	Public reported flash flooding over Archuleta County Road 500/169 Trujillo Road between Arboles and Caracas. There were additional washouts reported near Arboles point, along Trujillo road about 2 miles southeast from the initial LSR location.
June 2006	Thunderstorm Wind	Arboles	$15,000	no account filed
April 1999	Thunderstorm Wind	Arboles	$500	no account filed
June 2025	Debris Flow	Arboles	-	At approximately 6:20 PM MDT, a severe thunderstorm moved southwest of Chimney Rock National Monument, producing heavy rain and hail. This heavy rain fell on an area of very steep terrain and produced a mud flow and small rock slide across Colorado Highway 151. Aside from the road needing to be cleared, no damage, injuries, or fatalities were reported in association with this debris flow.
October 2025	Flood	Arboles	-	The Piedra River had a rapid rise in levels throughout the morning and afternoon of October 11th due to abundant rainfall starting on October 10th. It first crested to a preliminary level of 5.86 ft around midnight 10/12. A second crest occurred to a preliminary level of 7.26 ft on 10/14 around 1300 MST. This set a new record, beating the previous crest record of 6.4 ft which was set back on 9/6/1970. Most issues were adjacent to the 151 corridor north of Arboles where numerous drives were under water, one garage had some water in it. Forest Service Rd 613 did have some inundation but most bridges had several feet of clearance. USFS 613 which is parallel to the river did have water in some areas.
September 2013	Hail	Arboles	-	no account filed
November 2005	Thunderstorm Wind	Arboles	-	no account filed
September 2004	Heavy Rain	Arboles	-	no account filed

Every storm recorded in Archuleta 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 85001399 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
Archuleta County	All 2 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.