US Bridges

Ramp SR51 to IR475 over Ir 475

Fair

Lucas County, Ohio · 4.15 MI E - US23 & Ir 475 · Structure no. 4808223

Built
1970
55 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
227 ft
4 main spans
Daily traffic
3,996
2019 count
Owner
State
State Highway Agency

About this bridge

Ramp SR51 to IR475 over Ir 475 is a steel continuous stringer/multi-beam or girder carrying Ramp SR51 to IR475 over Ir 475 in Lucas County, Ohio. It was built in 1970, so it is 55 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 6 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 3,996 vehicles a day, roughly 2% of them trucks, projected to reach 4,200 by 2039. The structure is 227 ft (69.2 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesRamp SR51 to IR475
CrossesIr 475
Location4.15 MI E - US23 & Ir 475
RouteInterstate 475
CountyLucas County
StateOhio
Coordinates41.68535, -83.61604
Functional classUrban 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.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length227 ft (69.2 m)
Longest span71 ft (21.6 m)
Deck width30 ft (9.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,996 (2019)
Projected traffic4,200 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp SR51 to IR475 over Ir 475 built?

It was built in 1970, making it 55 years old in 2025.

What condition is Ramp SR51 to IR475 over Ir 475 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 January 2025.

How much traffic does Ramp SR51 to IR475 over Ir 475 carry?

About 3,996 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Ramp SR51 to IR475 over Ir 475?

The structure is 227 ft (69.2 m) long with a longest span of 71 ft (21.6 m) and a deck 30 ft wide.

Who owns Ramp SR51 to IR475 over Ir 475?

It is owned by the State Highway Agency.