US Bridges

US 34 FAP 587 over Stream

Good

LaSalle County, Illinois · 4.8 MI W of I-39 · Structure no. 050205200000000

Built
2009
16 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
33 ft
2 main spans
Daily traffic
1,900
2023 count
Owner
State
State Highway Agency

About this bridge

US 34 FAP 587 over Stream is a concrete culvert carrying US 34 FAP 587 over Stream in LaSalle County, Illinois. It was built in 2009, so it is 16 years old, younger 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 1,900 vehicles a day, roughly 13% of them trucks, projected to reach 1,919 by 2046. The structure is 33 ft (10.2 m) long and 67 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesUS 34 FAP 587
CrossesStream
Location4.8 MI W of I-39
RouteU.S. Route 34
Coordinates41.5484, -89.14475
Functional classRural Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.7 US tons
Inventory rating50.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length33 ft (10.2 m)
Longest span16 ft (5 m)
Deck width67 ft (20.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2023)
Projected traffic1,919 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
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 34 FAP 587 over Stream built?

It was built in 2009, making it 16 years old in 2025.

What condition is US 34 FAP 587 over Stream 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 December 2024.

How much traffic does US 34 FAP 587 over Stream carry?

About 1,900 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is US 34 FAP 587 over Stream?

The structure is 33 ft (10.2 m) long with a longest span of 16 ft (5 m) and a deck 67 ft wide.

Who owns US 34 FAP 587 over Stream?

It is owned by the State Highway Agency.