US Bridges

SR 120 over Ottawa River

Good

Lucas County, Ohio · 0.04 MI E Riva Ridge Rd. · Structure no. 4804930

Built
2023
2 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
168 ft
3 main spans
Daily traffic
32,500
2023 count
Owner
State
State Highway Agency

About this bridge

SR 120 over Ottawa River is a prestressed concrete stringer/multi-beam or girder carrying SR 120 over Ottawa River in Lucas County, Ohio. It was built in 2023, so it is 2 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 32,500 vehicles a day, roughly 11% of them trucks, projected to reach 37,500 by 2044. The structure is 168 ft (51.1 m) long and 79 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesSR 120
CrossesOttawa River
Location0.04 MI E Riva Ridge Rd.
RouteState Highway 120
CountyLucas County
StateOhio
Coordinates41.67688, -83.66033
Functional classUrban Other Principal Arterial

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.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length168 ft (51.1 m)
Longest span53 ft (16.2 m)
Deck width79 ft (24.2 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,500 (2023)
Projected traffic37,500 by 2044
Trucks11%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemYes

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 SR 120 over Ottawa River built?

It was built in 2023, making it 2 years old in 2025.

What condition is SR 120 over Ottawa River 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 February 2025.

How much traffic does SR 120 over Ottawa River carry?

About 32,500 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is SR 120 over Ottawa River?

The structure is 168 ft (51.1 m) long with a longest span of 53 ft (16.2 m) and a deck 79 ft wide.

Who owns SR 120 over Ottawa River?

It is owned by the State Highway Agency.