US Bridges

Piqua-Troy over Armco Access Road

Good

Miami County, Ohio · 0.79 N of CR16 · Structure no. 5537274

Built
1977
48 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
2,235
2015 count
Owner
County
County Highway Agency

About this bridge

Piqua-Troy over Armco Access Road is a prestressed concrete box beam or girders - multiple carrying Piqua-Troy over Armco Access Road in Miami County, Ohio. It was built in 1977, so it is 48 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,235 vehicles a day, roughly 11% of them trucks, projected to reach 3,102 by 2038. The structure is 66 ft (20.1 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesPiqua-Troy
CrossesArmco Access Road
Location0.79 N of CR16
RouteCounty Highway 15
CountyMiami County
StateOhio
Coordinates40.12166, -84.22844
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating52.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length66 ft (20.1 m)
Longest span62 ft (18.9 m)
Deck width29 ft (8.7 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,235 (2015)
Projected traffic3,102 by 2038
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Piqua-Troy over Armco Access Road built?

It was built in 1977, making it 48 years old in 2025.

What condition is Piqua-Troy over Armco Access Road in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does Piqua-Troy over Armco Access Road carry?

About 2,235 vehicles per day (2015 count), of which roughly 11% are trucks.

How long is Piqua-Troy over Armco Access Road?

The structure is 66 ft (20.1 m) long with a longest span of 62 ft (18.9 m) and a deck 29 ft wide.

Who owns Piqua-Troy over Armco Access Road?

It is owned by the County Highway Agency.