US Bridges

FAS 395 - Ch 17 over Trib to Spoon River

Good

Knox County, Illinois · SW-18-T10NR4E · Structure no. 048504100000000

Built
2020
5 years old
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
75
2022 count
Owner
County
County Highway Agency

About this bridge

FAS 395 - Ch 17 over Trib to Spoon River is a prestressed concrete box beam or girders - multiple carrying FAS 395 - Ch 17 over Trib to Spoon River in Knox County, Illinois. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 75 vehicles a day, roughly 23% of them trucks, projected to reach 126 by 2046. The structure is 68 ft (20.7 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFAS 395 - Ch 17
CrossesTrib to Spoon River
LocationSW-18-T10NR4E
RouteCounty Highway 0
Coordinates40.84589, -90.10044
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating52.9 US tons
Inventory rating41.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length68 ft (20.7 m)
Longest span66 ft (20.2 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2022)
Projected traffic126 by 2046
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAS 395 - Ch 17 over Trib to Spoon River built?

It was built in 2020, making it 5 years old in 2025.

What condition is FAS 395 - Ch 17 over Trib to Spoon River 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 FAS 395 - Ch 17 over Trib to Spoon River carry?

About 75 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is FAS 395 - Ch 17 over Trib to Spoon River?

The structure is 68 ft (20.7 m) long with a longest span of 66 ft (20.2 m) and a deck 28 ft wide.

Who owns FAS 395 - Ch 17 over Trib to Spoon River?

It is owned by the County Highway Agency.