US Bridges

County Highway 25 over Drainage Ditch

Good

Rock Island County, Illinois · 1 MI N of Joslin · Structure no. 081500800000000

Built
1975
50 years old
Condition
Good
inspected November 2022
Type
Culvert
Concrete Continuous
Length
33 ft
2 main spans
Daily traffic
450
2020 count
Owner
County
County Highway Agency

About this bridge

County Highway 25 over Drainage Ditch is a concrete continuous culvert carrying County Highway 25 over Drainage Ditch in Rock Island County, Illinois. It was built in 1975, so it is 50 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 450 vehicles a day, roughly 12% of them trucks, projected to reach 455 by 2046. The structure is 33 ft (10 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesCounty Highway 25
CrossesDrainage Ditch
Location1 MI N of Joslin
RouteCounty Highway 0
CountyRock Island County
StateIllinois
Coordinates41.57221, -90.22484
Functional classRural Minor Collector

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 inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating97.9 US tons
Inventory rating86.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 15
Structure length33 ft (10 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2020)
Projected traffic455 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Highway 25 over Drainage Ditch built?

It was built in 1975, making it 50 years old in 2025.

What condition is County Highway 25 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 November 2022.

How much traffic does County Highway 25 over Drainage Ditch carry?

About 450 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is County Highway 25 over Drainage Ditch?

The structure is 33 ft (10 m) long with a longest span of 16 ft (4.9 m).

Who owns County Highway 25 over Drainage Ditch?

It is owned by the County Highway Agency.