US Bridges

Brisbin RD/MS0020 over West Aux Sable Ck

Poor

Kendall County, Illinois · 1 MI N of Ill Rt 52 · Structure no. 047308500000000

Built
1971
54 years old
Condition
Poor
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
175
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Brisbin RD/MS0020 over West Aux Sable Ck is a prestressed concrete box beam or girders - multiple carrying Brisbin RD/MS0020 over West Aux Sable Ck in Kendall County, Illinois. It was built in 1971, so it is 54 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 175 vehicles a day, roughly 25% of them trucks, projected to reach 299 by 2046. The structure is 49 ft (14.9 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesBrisbin RD/MS0020
CrossesWest Aux Sable Ck
Location1 MI N of Ill Rt 52
RouteCity Street 0
Coordinates41.52779, -88.36591
Functional classRural 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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating21.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 15
Structure length49 ft (14.9 m)
Longest span49 ft (14.9 m)
Deck width22 ft (6.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2024)
Projected traffic299 by 2046
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Brisbin RD/MS0020 over West Aux Sable Ck built?

It was built in 1971, making it 54 years old in 2025.

What condition is Brisbin RD/MS0020 over West Aux Sable Ck 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 November 2023.

How much traffic does Brisbin RD/MS0020 over West Aux Sable Ck carry?

About 175 vehicles per day (2024 count), of which roughly 25% are trucks.

How long is Brisbin RD/MS0020 over West Aux Sable Ck?

The structure is 49 ft (14.9 m) long with a longest span of 49 ft (14.9 m) and a deck 22 ft wide.

Who owns Brisbin RD/MS0020 over West Aux Sable Ck?

It is owned by the City or Municipal Highway Agency.