US Bridges

Monroe Street over Ottawa River

Good

Lucas County, Ohio · 0.01 Mile N. of S. Cove · Structure no. 4805313

Built
1961
64 years old, rebuilt 2016
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
133 ft
3 main spans
Daily traffic
14,971
2019 count
Owner
State
State Highway Agency

About this bridge

Monroe Street over Ottawa River is a steel continuous stringer/multi-beam or girder carrying Monroe Street over Ottawa River in Lucas County, Ohio. It was built in 1961 and reconstructed in 2016, so it is 64 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,971 vehicles a day, roughly 1% of them trucks, projected to reach 26,082 by 2039. The structure is 133 ft (40.5 m) long and 68 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMonroe Street
CrossesOttawa River
Location0.01 Mile N. of S. Cove
RouteState Highway 51
StateOhio
Coordinates41.67131, -83.58441
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating44 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span50 ft (15.2 m)
Deck width68 ft (20.8 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,971 (2019)
Projected traffic26,082 by 2039
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Monroe Street over Ottawa River built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2016.

What condition is Monroe Street 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 December 2024.

How much traffic does Monroe Street over Ottawa River carry?

About 14,971 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Monroe Street over Ottawa River?

The structure is 133 ft (40.5 m) long with a longest span of 50 ft (15.2 m) and a deck 68 ft wide.

Who owns Monroe Street over Ottawa River?

It is owned by the State Highway Agency.