US Bridges

Mendenhall over Magtao Ditch

Good

Darke County, Ohio · .2 MI N SR 705 · Structure no. 1959719

Built
2017
8 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
100
1951 count
Owner
County
County Highway Agency

About this bridge

Mendenhall over Magtao Ditch is a steel stringer/multi-beam or girder carrying Mendenhall over Magtao Ditch in Darke County, Ohio. It was built in 2017, so it is 8 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 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 100 vehicles a day, projected to reach 139 by 1971. The structure is 36 ft (10.9 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesMendenhall
CrossesMagtao Ditch
Location.2 MI N SR 705
RouteCounty Highway T0178
CountyDarke County
StateOhio
Coordinates40.34218, -84.50546
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.5 US tons
Inventory rating48.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length36 ft (10.9 m)
Longest span30 ft (9.1 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (1951)
Projected traffic139 by 1971
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mendenhall over Magtao Ditch built?

It was built in 2017, making it 8 years old in 2025.

What condition is Mendenhall over Magtao 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 2023.

How much traffic does Mendenhall over Magtao Ditch carry?

About 100 vehicles per day (1951 count).

How long is Mendenhall over Magtao Ditch?

The structure is 36 ft (10.9 m) long with a longest span of 30 ft (9.1 m) and a deck 24 ft wide.

Who owns Mendenhall over Magtao Ditch?

It is owned by the County Highway Agency.