US Bridges

Sci TR 77 over Armstrong Ditch

Good

Seneca County, Ohio · .29 MI S of SR 162 · Structure no. 7446897

Built
2019
6 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
24 ft
1 main span
Daily traffic
209
2015 count
Owner
County
County Highway Agency

About this bridge

Sci TR 77 over Armstrong Ditch is a prestressed concrete box beam or girders - multiple carrying Sci TR 77 over Armstrong Ditch in Seneca County, Ohio. It was built in 2019, so it is 6 years old, younger 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 209 vehicles a day, roughly 7% of them trucks, projected to reach 290 by 2035. The structure is 24 ft (7.3 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSci TR 77
CrossesArmstrong Ditch
Location.29 MI S of SR 162
RouteCounty Highway T0077
CountySeneca County
StateOhio
Coordinates41.12, -82.97667
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating93.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic209 (2015)
Projected traffic290 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sci TR 77 over Armstrong Ditch built?

It was built in 2019, making it 6 years old in 2025.

What condition is Sci TR 77 over Armstrong Ditch 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 August 2024.

How much traffic does Sci TR 77 over Armstrong Ditch carry?

About 209 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Sci TR 77 over Armstrong Ditch?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 25 ft wide.

Who owns Sci TR 77 over Armstrong Ditch?

It is owned by the County Highway Agency.