US Bridges

Hunter Road (fas 3 over Br of S Kinnikinnick

Fair

Boone County, Illinois · 0.2 MI E of CO Line · Structure no. 004500700000000

Built
1975
50 years old
Condition
Fair
inspected July 2023
Type
Culvert
Steel
Length
23 ft
2 main spans
Daily traffic
2,150
2023 count
Owner
County
County Highway Agency

About this bridge

Hunter Road (fas 3 over Br of S Kinnikinnick is a steel culvert carrying Hunter Road (fas 3 over Br of S Kinnikinnick in Boone County, Illinois. It was built in 1975, so it is 50 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 6 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 2,150 vehicles a day, roughly 10% of them trucks, projected to reach 2,288 by 2046. The structure is 23 ft (7 m) long. If it were closed, the detour would be 14.3 mi (23 km).

Location

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CarriesHunter Road (fas 3
CrossesBr of S Kinnikinnick
Location0.2 MI E of CO Line
RouteCounty Highway 0
CountyBoone County
StateIllinois
Coordinates42.42836, -88.93517
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating97.9 US tons
Inventory rating88.2 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,150 (2023)
Projected traffic2,288 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hunter Road (fas 3 over Br of S Kinnikinnick built?

It was built in 1975, making it 50 years old in 2025.

What condition is Hunter Road (fas 3 over Br of S Kinnikinnick 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 Hunter Road (fas 3 over Br of S Kinnikinnick carry?

About 2,150 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Hunter Road (fas 3 over Br of S Kinnikinnick?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns Hunter Road (fas 3 over Br of S Kinnikinnick?

It is owned by the County Highway Agency.