US Bridges

Red Oak Lane over S Br Keith Creek

Fair

Winnebago County, Illinois · 0.03 M N Guilford · Structure no. 101512700000000

Built
1980
45 years old
Condition
Fair
inspected October 2023
Type
Culvert
Steel
Length
22 ft
3 main spans
Daily traffic
325
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Red Oak Lane over S Br Keith Creek is a steel culvert carrying Red Oak Lane over S Br Keith Creek in Winnebago County, Illinois. It was built in 1980, so it is 45 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 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 325 vehicles a day, roughly 5% of them trucks, projected to reach 404 by 2046. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRed Oak Lane
CrossesS Br Keith Creek
Location0.03 M N Guilford
RouteCity Street 0
Coordinates42.28295, -88.97752
Functional classUrban Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating98.2 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic325 (2022)
Projected traffic404 by 2046
Trucks5%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Red Oak Lane over S Br Keith Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Red Oak Lane over S Br Keith Creek 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 October 2023.

How much traffic does Red Oak Lane over S Br Keith Creek carry?

About 325 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Red Oak Lane over S Br Keith Creek?

The structure is 22 ft (6.7 m) long with a longest span of 6 ft (1.8 m).

Who owns Red Oak Lane over S Br Keith Creek?

It is owned by the City or Municipal Highway Agency.