US Bridges

North Oakton Road over Tributary of Plum R

Good

Carroll County, Illinois · 1 MI NE Savana · Structure no. 008300700000000

Built
1966
59 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
200
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

North Oakton Road over Tributary of Plum R is a concrete culvert carrying North Oakton Road over Tributary of Plum R in Carroll County, Illinois. It was built in 1966, so it is 59 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 200 vehicles a day, roughly 10% of them trucks, projected to reach 202 by 2046. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesNorth Oakton Road
CrossesTributary of Plum R
Location1 MI NE Savana
RouteCounty Highway 0
Coordinates42.11271, -90.1179
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 15
Structure length26 ft (7.9 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2021)
Projected traffic202 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 North Oakton Road over Tributary of Plum R built?

It was built in 1966, making it 59 years old in 2025.

What condition is North Oakton Road over Tributary of Plum R in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does North Oakton Road over Tributary of Plum R carry?

About 200 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is North Oakton Road over Tributary of Plum R?

The structure is 26 ft (7.9 m) long with a longest span of 13 ft (3.9 m).

Who owns North Oakton Road over Tributary of Plum R?

It is owned by the Town or Township Highway Agency.