US Bridges

Brickyard RD (650 over I-74

Poor

Knox County, Illinois · 1 MI NW Knoxville · Structure no. 048004800000000

Built
1963
62 years old
Condition
Poor
inspected May 2024
Type
Tee Beam
Concrete Continuous
Length
291 ft
4 main spans
Daily traffic
250
2022 count
Owner
State
State Highway Agency

About this bridge

Brickyard RD (650 over I-74 is a concrete continuous tee beam carrying Brickyard RD (650 over I-74 in Knox County, Illinois. It was built in 1963, so it is 62 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 250 vehicles a day, roughly 13% of them trucks, projected to reach 202 by 2046. The structure is 291 ft (88.7 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesBrickyard RD (650
CrossesI-74
Location1 MI NW Knoxville
RouteCity Street 0
CountyKnox County
StateIllinois
Coordinates40.93058, -90.31744
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.2 US tons
Inventory rating32.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length291 ft (88.7 m)
Longest span86 ft (26.2 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2022)
Projected traffic202 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Brickyard RD (650 over I-74 built?

It was built in 1963, making it 62 years old in 2025.

What condition is Brickyard RD (650 over I-74 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 Brickyard RD (650 over I-74 carry?

About 250 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Brickyard RD (650 over I-74?

The structure is 291 ft (88.7 m) long with a longest span of 86 ft (26.2 m) and a deck 30 ft wide.

Who owns Brickyard RD (650 over I-74?

It is owned by the State Highway Agency.