US Bridges

Ch 9 Kappa RD over 1-39 US 51

Fair

Woodford County, Illinois · 4.1 MI S of US 24 · Structure no. 102006100000000

Built
1989
36 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
260 ft
3 main spans
Daily traffic
550
2020 count
Owner
State
State Highway Agency

About this bridge

Ch 9 Kappa RD over 1-39 US 51 is a steel continuous stringer/multi-beam or girder carrying Ch 9 Kappa RD over 1-39 US 51 in Woodford County, Illinois. It was built in 1989, so it is 36 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 550 vehicles a day, roughly 9% of them trucks, projected to reach 556 by 2046. The structure is 260 ft (79.2 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCh 9 Kappa RD
Crosses1-39 US 51
Location4.1 MI S of US 24
RouteCounty Highway 0
CountyWoodford County
StateIllinois
Coordinates40.67887, -89.02754
Functional classRural Major Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 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 geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length260 ft (79.2 m)
Longest span197 ft (60 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2020)
Projected traffic556 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ch 9 Kappa RD over 1-39 US 51 built?

It was built in 1989, making it 36 years old in 2025.

What condition is Ch 9 Kappa RD over 1-39 US 51 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 February 2023.

How much traffic does Ch 9 Kappa RD over 1-39 US 51 carry?

About 550 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is Ch 9 Kappa RD over 1-39 US 51?

The structure is 260 ft (79.2 m) long with a longest span of 197 ft (60 m) and a deck 37 ft wide.

Who owns Ch 9 Kappa RD over 1-39 US 51?

It is owned by the State Highway Agency.