Ir 77 over Buffalo Run

Fair

Noble County, Ohio · 0.77M N Wash. Co. Line · Structure no. 6100066

Built: 1969; 56 years old
Condition: Fair; inspected September 2024
Type: Slab; Concrete Continuous
Length: 106 ft; 3 main spans
Daily traffic: 8,997; 2015 count
Owner: State; State Highway Agency

About this bridge

Ir 77 over Buffalo Run is a concrete continuous slab carrying Ir 77 over Buffalo Run in Noble County, Ohio. It was built in 1969, so it is 56 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 8,997 vehicles a day, roughly 24% of them trucks, projected to reach 12,488 by 2035. The structure is 106 ft (32.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIr 77

CrossesBuffalo Run

Location0.77M N Wash. Co. Line

RouteInterstate 77

CountyNoble County

StateOhio

Coordinates39.65638, -81.46691

Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionSeptember 2024

Inspection intervalevery 12 months

Operating statusOpen, no restriction

ScourFoundations stable; scour within limits of footing or piles

Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is

Deck geometry6: Equal to present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating57.1 US tons

Inventory rating35.7 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckNot applicable

Main spans3

Design loadHS 20

Structure length106 ft (32.3 m)

Longest span40 ft (12.2 m)

Deck width42 ft (12.9 m)

Roadway width38 ft (11.6 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,997 (2015)

Projected traffic12,488 by 2035

Trucks24%

Lanes on structure2

Traffic directionOne-way traffic

CarriesHighway

CrossesWaterway

Detour if closed1.2 mi (2 km)

TollOn a free road

National Highway SystemYes

Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency

Maintained byState 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 Ir 77 over Buffalo Run built?

It was built in 1969, making it 56 years old in 2025.

What condition is Ir 77 over Buffalo Run in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does Ir 77 over Buffalo Run carry?

About 8,997 vehicles per day (2015 count), of which roughly 24% are trucks.

How long is Ir 77 over Buffalo Run?

The structure is 106 ft (32.3 m) long with a longest span of 40 ft (12.2 m) and a deck 42 ft wide.

Who owns Ir 77 over Buffalo Run?

It is owned by the State Highway Agency.