US Bridges

FAI 39 RMP#15.90 over Conveyor Belt/Pvt RD

Good

LaSalle County, Illinois · 600 Ft S of US 6 · Structure no. 050201800000000

Built
1985
40 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
48 ft
1 main span
Daily traffic
950
2020 count
Owner
State
State Highway Agency

About this bridge

FAI 39 RMP#15.90 over Conveyor Belt/Pvt RD is a concrete culvert carrying FAI 39 RMP#15.90 over Conveyor Belt/Pvt RD in LaSalle County, Illinois. It was built in 1985, so it is 40 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 950 vehicles a day, roughly 18% of them trucks, projected to reach 960 by 2046. The structure is 48 ft (14.7 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFAI 39 RMP#15.90
CrossesConveyor Belt/Pvt RD
Location600 Ft S of US 6
CountyLaSalle County
StateIllinois
Coordinates41.33534, -89.07094
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating62.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length48 ft (14.7 m)
Longest span43 ft (13.1 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic950 (2020)
Projected traffic960 by 2046
Trucks18%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAI 39 RMP#15.90 over Conveyor Belt/Pvt RD built?

It was built in 1985, making it 40 years old in 2025.

What condition is FAI 39 RMP#15.90 over Conveyor Belt/Pvt RD 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 February 2024.

How much traffic does FAI 39 RMP#15.90 over Conveyor Belt/Pvt RD carry?

About 950 vehicles per day (2020 count), of which roughly 18% are trucks.

How long is FAI 39 RMP#15.90 over Conveyor Belt/Pvt RD?

The structure is 48 ft (14.7 m) long with a longest span of 43 ft (13.1 m) and a deck 30 ft wide.

Who owns FAI 39 RMP#15.90 over Conveyor Belt/Pvt RD?

It is owned by the State Highway Agency.