US Bridges

MS-2100 Leicester over Lake Cosman

Poor

Cook County, Illinois · 1.2 M N Devon P5 · Structure no. 016785500000000

Built
1969
56 years old
Condition
Poor
inspected May 2024
Type
Culvert
Steel
Length
26 ft
1 main span
Daily traffic
575
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

MS-2100 Leicester over Lake Cosman is a steel culvert carrying MS-2100 Leicester over Lake Cosman in Cook County, Illinois. It was built in 1969, so it is 56 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 575 vehicles a day, projected to reach 682 by 2046. The structure is 26 ft (7.9 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMS-2100 Leicester
CrossesLake Cosman
Location1.2 M N Devon P5
RouteCity Street 0
CountyCook County
StateIllinois
Coordinates42.00886, -88.01368
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating19.3 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic575 (2022)
Projected traffic682 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 MS-2100 Leicester over Lake Cosman built?

It was built in 1969, making it 56 years old in 2025.

What condition is MS-2100 Leicester over Lake Cosman in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does MS-2100 Leicester over Lake Cosman carry?

About 575 vehicles per day (2022 count).

How long is MS-2100 Leicester over Lake Cosman?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 36 ft wide.

Who owns MS-2100 Leicester over Lake Cosman?

It is owned by the City or Municipal Highway Agency.