US Bridges

Diehl Road over Ferry Creek

Fair

DuPage County, Illinois · 0.3 MI E Raymond DR · Structure no. 022310700000000

Built
1992
33 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
5,150
2024 count
Owner
County
County Highway Agency

About this bridge

Diehl Road over Ferry Creek is a concrete continuous culvert carrying Diehl Road over Ferry Creek in DuPage County, Illinois. It was built in 1992, so it is 33 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 5,150 vehicles a day, roughly 4% of them trucks, projected to reach 4,091 by 2046. The structure is 31 ft (9.5 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesDiehl Road
CrossesFerry Creek
Location0.3 MI E Raymond DR
CountyDuPage County
StateIllinois
Coordinates41.80342, -88.18624
Functional classUrban Minor Arterial

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
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length31 ft (9.5 m)
Longest span15 ft (4.6 m)
Deck width79 ft (24.2 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,150 (2024)
Projected traffic4,091 by 2046
Trucks4%
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

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 Diehl Road over Ferry Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Diehl Road over Ferry 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 Diehl Road over Ferry Creek carry?

About 5,150 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Diehl Road over Ferry Creek?

The structure is 31 ft (9.5 m) long with a longest span of 15 ft (4.6 m) and a deck 79 ft wide.

Who owns Diehl Road over Ferry Creek?

It is owned by the County Highway Agency.