US Bridges

Columbine Road over Br Leaf River

Good

Ogle County, Illinois · 2.8 M NE Forreston · Structure no. 071506500000000

Built
1976
49 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
100
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Columbine Road over Br Leaf River is a concrete culvert carrying Columbine Road over Br Leaf River in Ogle County, Illinois. It was built in 1976, so it is 49 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 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 100 vehicles a day, roughly 45% of them trucks, projected to reach 130 by 2046. The structure is 25 ft (7.6 m) long and 38 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesColumbine Road
CrossesBr Leaf River
Location2.8 M NE Forreston
RouteCounty Highway 0
Coordinates42.15866, -89.54118
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating27.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width38 ft (11.5 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic130 by 2046
Trucks45%
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 Columbine Road over Br Leaf River built?

It was built in 1976, making it 49 years old in 2025.

What condition is Columbine Road over Br Leaf River 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 June 2024.

How much traffic does Columbine Road over Br Leaf River carry?

About 100 vehicles per day (2022 count), of which roughly 45% are trucks.

How long is Columbine Road over Br Leaf River?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 38 ft wide.

Who owns Columbine Road over Br Leaf River?

It is owned by the Town or Township Highway Agency.