US Bridges

SR 306 over I-90 (broadmoor SR 306)

Good

Lake County, Ohio · 3.5 MI W SR615 · Structure no. 4303997

Built
1962
63 years old, rebuilt 2023
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
398 ft
6 main spans
Daily traffic
21,309
2015 count
Owner
State
State Highway Agency

About this bridge

SR 306 over I-90 (broadmoor SR 306) is a steel continuous stringer/multi-beam or girder carrying SR 306 over I-90 (broadmoor SR 306) in Lake County, Ohio. It was built in 1962 and reconstructed in 2023, so it is 63 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 21,309 vehicles a day, roughly 10% of them trucks, projected to reach 29,577 by 2035. The structure is 398 ft (121.2 m) long and 77 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 306
CrossesI-90 (broadmoor SR 306)
Location3.5 MI W SR615
RouteState Highway 306
CountyLake County
StateOhio
Coordinates41.64054, -81.37399
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
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length398 ft (121.2 m)
Longest span71 ft (21.7 m)
Deck width77 ft (23.4 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,309 (2015)
Projected traffic29,577 by 2035
Trucks10%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 SR 306 over I-90 (broadmoor SR 306) built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2023.

What condition is SR 306 over I-90 (broadmoor SR 306) 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 October 2024.

How much traffic does SR 306 over I-90 (broadmoor SR 306) carry?

About 21,309 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is SR 306 over I-90 (broadmoor SR 306)?

The structure is 398 ft (121.2 m) long with a longest span of 71 ft (21.7 m) and a deck 77 ft wide.

Who owns SR 306 over I-90 (broadmoor SR 306)?

It is owned by the State Highway Agency.