US Bridges

Stropes Road over Drainage Ditch

Good

Whiteside County, Illinois · 4 MI NW Erie · Structure no. 098520300000000

Built
1971
54 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
100
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Stropes Road over Drainage Ditch is a concrete culvert carrying Stropes Road over Drainage 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, roughly 19% of them trucks, projected to reach 101 by 2046. The structure is 27 ft (8.1 m) long and 30 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesStropes Road
CrossesDrainage Ditch
Location4 MI NW Erie
RouteCounty Highway 0
Coordinates41.69325, -90.16091
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 inspectionApril 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 15
Structure length27 ft (8.1 m)
Longest span13 ft (3.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2021)
Projected traffic101 by 2046
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Stropes Road over Drainage Ditch built?

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

What condition is Stropes Road over Drainage 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 April 2024.

How much traffic does Stropes Road over Drainage Ditch carry?

About 100 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is Stropes Road over Drainage Ditch?

The structure is 27 ft (8.1 m) long with a longest span of 13 ft (3.9 m) and a deck 30 ft wide.

Who owns Stropes Road over Drainage Ditch?

It is owned by the Town or Township Highway Agency.