Listed on the National Register of Historic Places in 1975. 10 historic topographic surveys show this location, the earliest from 1913.
From the record
“The McColly Covered Bridge is a historic wooden covered bridge in western Logan County, Ohio, United States. Located in Washington Township near the community of Bloom Center, it is one of two remaining covered bridges in Logan County.”
Wikipedia article McColly Covered Bridge, CC BY-SA 4.0.
One of 8 National Register listings published here for Logan County · listed in 1975 · category: Structure.
National Register reference number.75001458- 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.
Then and now
1913 to 1992
The ground this property stands on, surveyed
79 years apart. Drag the handle to wipe between them. Both sheets are
United States Geological Survey originals; neither has been altered.
19131992
Specimens collected near this property
12 of 580 shown
Regional context, not property-specific
evidence. Museums hold 580 specimens
collected within 10 miles of McColly Covered Bridge between 1862 and 1975: 522 Animalia, 43 Plantae, 13 Fungi, 2 Protozoa.
12 distinct Species records are shown.
Collected by A Schwartz, A. R. Gaufin, A.R. Gaufin, H.H. Ross and others. Each is a
physical object with a catalogue
number, and each entry opens the museum's record. This is what was
collected and kept, not a survey of what lives here - nothing can be
concluded from a species being absent.
Regional context, not property-specific
evidence. The federal mineral resources record lists
2 workings within 5 miles of McColly Covered Bridge: 1 past producer, 1 producer.
1 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.
Regional context, not property-specific
evidence. The National Weather Service names
Bloom Center, the town this property stands in, in 6 storm reports between 2017 and 2025: 3 thunderstorm wind, 2 hail, 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.
United States Geological Survey topographic
sheets whose coverage includes this point. Matched by taking the coordinate the National Park Service records for this property, then
testing that coordinate against the published boundary of every sheet.
When this property was proposed for the
National Register, someone wrote the case for it: what the building is,
and why it matters. That document is a federal record in the public domain.
It is quoted below word for word, never summarised. The text was read off the scanned case file by machine, so the
occasional stray character is the recogniser's and the 1970s
typewriter's.
Description of the property
FEB2 81975 Excellent The structure under consideration is a one-span wooden truss covered fine example of the well-maintained Howe truss.It is a l3 panel Howe, bridge spanning the Great Miami River 2 miles southeast of Bloom Center truss plan which was patented in l840 by William Howe of Spencer, Mass, railroads and highways of our young country.The McColly Bridge is a Fair PERIOD (Check One or More as Appropriate) - Pre-Columbian: - 16th Century - Education - Urban Planning - Prehistoric X] Engineering Other. (Specify) - Industry - Science - Landscape - Literature - Theater - Transportation this bridge which is evident in its attractive and sturdy appearance. FEB281975 Commerce Conservation Architecture Communications RECEIVED REGISTER Aboriginal NATIONAL Military
Quoted from the National Register nomination
for reference 75001458, 11 pages, held by the National Archives in Record
Group 79. See the
catalogue record.
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.
Specimens. Global Biodiversity Information Facility (GBIF), https://www.gbif.org/. Only records licensed CC0 or CC BY are used. Records licensed CC BY-NC are excluded because this site carries advertising. Images are checked individually and any whose licence is non-commercial, no-derivatives or unreadable is refused.
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.
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