US Bridges

County Line Road over County Ditch

Good

Whiteside County, Illinois · 6.5 MI Sse Rock Fall · Structure no. 098496200000000

Built
1971
54 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete Continuous
Length
74 ft
3 main spans
Daily traffic
100
2017 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

County Line Road over County Ditch is a concrete continuous slab carrying County Line Road over County Ditch in Whiteside 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 100 vehicles a day, projected to reach 101 by 2046. The structure is 74 ft (22.6 m) long and 29 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesCounty Line Road
CrossesCounty Ditch
Location6.5 MI Sse Rock Fall
RouteCounty Highway 0
CountyWhiteside County
StateIllinois
Coordinates41.67534, -89.63229
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating62.5 US tons
Inventory rating37.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length74 ft (22.6 m)
Longest span28 ft (8.4 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2017)
Projected traffic101 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 County Line Road over County Ditch built?

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

What condition is County Line Road over County Ditch 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 February 2024.

How much traffic does County Line Road over County Ditch carry?

About 100 vehicles per day (2017 count).

How long is County Line Road over County Ditch?

The structure is 74 ft (22.6 m) long with a longest span of 28 ft (8.4 m) and a deck 29 ft wide.

Who owns County Line Road over County Ditch?

It is owned by the Town or Township Highway Agency.