US Bridges

Market ST (825 E) over I-74

Fair

Knox County, Illinois · In Knoxville · Structure no. 048004900000000

Built
1962
63 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
231 ft
4 main spans
Daily traffic
125
2022 count
Owner
State
State Highway Agency

About this bridge

Market ST (825 E) over I-74 is a concrete continuous tee beam carrying Market ST (825 E) over I-74 in Knox County, Illinois. It was built in 1962, so it is 63 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 125 vehicles a day, roughly 25% of them trucks, projected to reach 227 by 2046. The structure is 231 ft (70.4 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMarket ST (825 E)
CrossesI-74
LocationIn Knoxville
RouteCity Street 0
CountyKnox County
StateIllinois
Coordinates40.92051, -90.28409
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length231 ft (70.4 m)
Longest span68 ft (20.7 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2022)
Projected traffic227 by 2046
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 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 Market ST (825 E) over I-74 built?

It was built in 1962, making it 63 years old in 2025.

What condition is Market ST (825 E) over I-74 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Market ST (825 E) over I-74 carry?

About 125 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is Market ST (825 E) over I-74?

The structure is 231 ft (70.4 m) long with a longest span of 68 ft (20.7 m) and a deck 30 ft wide.

Who owns Market ST (825 E) over I-74?

It is owned by the State Highway Agency.