US Bridges

Mulford Road over S Br Keith CR

Good

Winnebago County, Illinois · 0.3 MI N Rt 20 · Structure no. 101507600000000

Built
1971
54 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
21,600
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mulford Road over S Br Keith CR is a concrete continuous culvert carrying Mulford Road over S Br Keith CR in Winnebago County, Illinois. It was built in 1971, so it is 54 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 21,600 vehicles a day, roughly 2% of them trucks, projected to reach 19,291 by 2046. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMulford Road
CrossesS Br Keith CR
Location0.3 MI N Rt 20
CountyWinnebago County
StateIllinois
Coordinates42.27338, -88.99972
Functional classUrban Other Principal Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.8 US tons
Inventory rating62.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 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 traffic21,600 (2022)
Projected traffic19,291 by 2046
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Mulford Road over S Br Keith CR built?

It was built in 1971, making it 54 years old in 2025.

What condition is Mulford Road over S Br Keith CR 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 August 2023.

How much traffic does Mulford Road over S Br Keith CR carry?

About 21,600 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Mulford Road over S Br Keith CR?

The structure is 25 ft (7.6 m) long with a longest span of 13 ft (3.9 m).

Who owns Mulford Road over S Br Keith CR?

It is owned by the City or Municipal Highway Agency.