US Bridges

Nokomis-Oconee Roa over Stream

Good

Montgomery County, Illinois · 8 Mi. E. Nokomis · Structure no. 068329900000000

Built
1989
36 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
78 ft
1 main span
Daily traffic
500
2020 count
Owner
County
County Highway Agency

About this bridge

Nokomis-Oconee Roa over Stream is a prestressed concrete box beam or girders - multiple carrying Nokomis-Oconee Roa over Stream in Montgomery 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 500 vehicles a day, roughly 14% of them trucks, projected to reach 505 by 2046. The structure is 78 ft (23.9 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNokomis-Oconee Roa
CrossesStream
Location8 Mi. E. Nokomis
RouteCounty Highway 0
Coordinates39.29075, -89.14724
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length78 ft (23.9 m)
Longest span75 ft (22.9 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2020)
Projected traffic505 by 2046
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Nokomis-Oconee Roa over Stream built?

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

What condition is Nokomis-Oconee Roa over Stream 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 November 2024.

How much traffic does Nokomis-Oconee Roa over Stream carry?

About 500 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is Nokomis-Oconee Roa over Stream?

The structure is 78 ft (23.9 m) long with a longest span of 75 ft (22.9 m) and a deck 30 ft wide.

Who owns Nokomis-Oconee Roa over Stream?

It is owned by the County Highway Agency.