US Bridges

US 12 45 NB Mannhe over Ramp to Balmoral

Good

Cook County, Illinois · 0.6 Miles of I-190 · Structure no. 016794300000000

Built
2013
12 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
125 ft
1 main span
Daily traffic
48,800
2023 count
Owner
State
State Highway Agency

About this bridge

US 12 45 NB Mannhe over Ramp to Balmoral is a steel stringer/multi-beam or girder carrying US 12 45 NB Mannhe over Ramp to Balmoral in Cook County, Illinois. It was built in 2013, so it is 12 years old, younger than the Illinois average of 45.3 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 48,800 vehicles a day, roughly 7% of them trucks, projected to reach 11,868 by 2046. The structure is 125 ft (38.2 m) long and 83 ft wide.

Location

Open in Google Maps
CarriesUS 12 45 NB Mannhe
CrossesRamp to Balmoral
Location0.6 Miles of I-190
RouteU.S. Route 12
CountyCook County
StateIllinois
Coordinates41.96918, -87.87672
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating48.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length125 ft (38.2 m)
Longest span117 ft (35.7 m)
Deck width83 ft (25.4 m)
Roadway width80 ft (24.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,800 (2023)
Projected traffic11,868 by 2046
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 12 45 NB Mannhe over Ramp to Balmoral built?

It was built in 2013, making it 12 years old in 2025.

What condition is US 12 45 NB Mannhe over Ramp to Balmoral 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 September 2023.

How much traffic does US 12 45 NB Mannhe over Ramp to Balmoral carry?

About 48,800 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US 12 45 NB Mannhe over Ramp to Balmoral?

The structure is 125 ft (38.2 m) long with a longest span of 117 ft (35.7 m) and a deck 83 ft wide.

Who owns US 12 45 NB Mannhe over Ramp to Balmoral?

It is owned by the State Highway Agency.