US Bridges

Brandon Road over Des Plaines River

PoorPosted for load

Will County, Illinois · Brandon Road&desp Rv · Structure no. 099990300000000

Built
1932
93 years old, rebuilt 1990
Condition
Poor
inspected June 2024
Type
Movable - Bascule
Steel
Length
202 ft
1 main span
Daily traffic
6,200
2023 count
Owner
State
State Highway Agency

About this bridge

Brandon Road over Des Plaines River is a steel movable - bascule carrying Brandon Road over Des Plaines River in Will County, Illinois. It was built in 1932 and reconstructed in 1990, so it is 93 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 6,200 vehicles a day, roughly 8% of them trucks, projected to reach 11,808 by 2046. The structure is 202 ft (61.6 m) long and 23 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBrandon Road
CrossesDes Plaines River
LocationBrandon Road&desp Rv
Coordinates41.50239, -88.10453
Functional classUrban Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 12 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating19.6 US tons
Inventory rating11.8 US tons

Structure

Structure typeMovable - Bascule
MaterialSteel
DeckOpen grating
Main spans1
Design loadHS 20 + Mod
Structure length202 ft (61.6 m)
Longest span151 ft (46 m)
Deck width23 ft (7.1 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,200 (2023)
Projected traffic11,808 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$984,000
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Brandon Road over Des Plaines River built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1990.

What condition is Brandon Road over Des Plaines River 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 June 2024.

How much traffic does Brandon Road over Des Plaines River carry?

About 6,200 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Brandon Road over Des Plaines River?

The structure is 202 ft (61.6 m) long with a longest span of 151 ft (46 m) and a deck 23 ft wide.

Who owns Brandon Road over Des Plaines River?

It is owned by the State Highway Agency.