US Bridges

Ill 29 Spur over Ill 6 & Ramp

Fair

Peoria County, Illinois · 0.4 MI W of Mossvill · Structure no. 072014900000000

Built
1983
42 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
297 ft
2 main spans
Daily traffic
5,400
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 29 Spur over Ill 6 & Ramp is a steel continuous stringer/multi-beam or girder carrying Ill 29 Spur over Ill 6 & Ramp in Peoria County, Illinois. It was built in 1983, so it is 42 years old, younger 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 5,400 vehicles a day, roughly 7% of them trucks, projected to reach 4,798 by 2046. The structure is 297 ft (90.5 m) long and 63 ft wide.

Location

Open in Google Maps
CarriesIll 29 Spur
CrossesIll 6 & Ramp
Location0.4 MI W of Mossvill
RouteState Highway 6
CountyPeoria County
StateIllinois
Coordinates40.82549, -89.57395
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.6 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length297 ft (90.5 m)
Longest span128 ft (38.9 m)
Deck width63 ft (19.2 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,400 (2023)
Projected traffic4,798 by 2046
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesOther
Detour if closed—
TollOn a free road
National Highway SystemYes

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 Ill 29 Spur over Ill 6 & Ramp built?

It was built in 1983, making it 42 years old in 2025.

What condition is Ill 29 Spur over Ill 6 & Ramp 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 January 2024.

How much traffic does Ill 29 Spur over Ill 6 & Ramp carry?

About 5,400 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Ill 29 Spur over Ill 6 & Ramp?

The structure is 297 ft (90.5 m) long with a longest span of 128 ft (38.9 m) and a deck 63 ft wide.

Who owns Ill 29 Spur over Ill 6 & Ramp?

It is owned by the State Highway Agency.