US Bridges

US 6/34 FAP 613 over Devils Slough Ditch

Fair

Bureau County, Illinois · 1.6 MI W of Il 40 · Structure no. 006201500000000

Built
2002
23 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
41 ft
3 main spans
Daily traffic
2,400
2023 count
Owner
State
State Highway Agency

About this bridge

US 6/34 FAP 613 over Devils Slough Ditch is a concrete culvert carrying US 6/34 FAP 613 over Devils Slough Ditch in Bureau County, Illinois. It was built in 2002, so it is 23 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 2,400 vehicles a day, roughly 11% of them trucks, projected to reach 2,374 by 2046. The structure is 41 ft (12.6 m) long and 31 ft wide.

Location

Open in Google Maps
CarriesUS 6/34 FAP 613
CrossesDevils Slough Ditch
Location1.6 MI W of Il 40
RouteU.S. Route 6
CountyBureau County
StateIllinois
Coordinates41.36526, -89.71569
Functional classRural 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating38.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length41 ft (12.6 m)
Longest span13 ft (3.9 m)
Deck width31 ft (9.6 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2023)
Projected traffic2,374 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 6/34 FAP 613 over Devils Slough Ditch built?

It was built in 2002, making it 23 years old in 2025.

What condition is US 6/34 FAP 613 over Devils Slough Ditch 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 July 2024.

How much traffic does US 6/34 FAP 613 over Devils Slough Ditch carry?

About 2,400 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US 6/34 FAP 613 over Devils Slough Ditch?

The structure is 41 ft (12.6 m) long with a longest span of 13 ft (3.9 m) and a deck 31 ft wide.

Who owns US 6/34 FAP 613 over Devils Slough Ditch?

It is owned by the State Highway Agency.