US Bridges

Quentin RD over Br of Salt Creek

PoorPosted for load

Cook County, Illinois · 0.2 M N Dundee P18 · Structure no. 016301100000000

Built
1927
98 years old
Condition
Poor
inspected September 2023
Type
Slab
Concrete
Length
24 ft
1 main span
Daily traffic
18,200
2022 count
Owner
County
County Highway Agency

About this bridge

Quentin RD over Br of Salt Creek is a concrete slab carrying Quentin RD over Br of Salt Creek in Cook County, Illinois. It was built in 1927, so it is 98 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 3 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. Its operating status is: posted for load restriction.

It carries about 18,200 vehicles a day, roughly 2% of them trucks, projected to reach 20,402 by 2046. The structure is 24 ft (7.3 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesQuentin RD
CrossesBr of Salt Creek
Location0.2 M N Dundee P18
Coordinates42.14011, -88.06294
Functional classUrban Other Principal Arterial

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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.8 US tons
Inventory rating16.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,200 (2022)
Projected traffic20,402 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$95,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Quentin RD over Br of Salt Creek built?

It was built in 1927, making it 98 years old in 2025.

What condition is Quentin RD over Br of Salt Creek 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 September 2023.

How much traffic does Quentin RD over Br of Salt Creek carry?

About 18,200 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Quentin RD over Br of Salt Creek?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 30 ft wide.

Who owns Quentin RD over Br of Salt Creek?

It is owned by the County Highway Agency.