US Bridges

Ch 6 over N Fork Lake Fork Ck

Good

Logan County, Illinois · 1.5 MI NW Latham · Structure no. 054300900000000

Built
1957
68 years old, rebuilt 1990
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
124 ft
3 main spans
Daily traffic
300
2022 count
Owner
County
County Highway Agency

About this bridge

Ch 6 over N Fork Lake Fork Ck is a prestressed concrete box beam or girders - multiple carrying Ch 6 over N Fork Lake Fork Ck in Logan County, Illinois. It was built in 1957 and reconstructed in 1990, so it is 68 years old, older 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 300 vehicles a day, roughly 23% of them trucks, projected to reach 263 by 2046. The structure is 124 ft (37.8 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCh 6
CrossesN Fork Lake Fork Ck
Location1.5 MI NW Latham
RouteCounty Highway 0
Coordinates39.98832, -89.18144
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length124 ft (37.8 m)
Longest span54 ft (16.5 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2022)
Projected traffic263 by 2046
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Ch 6 over N Fork Lake Fork Ck built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1990.

What condition is Ch 6 over N Fork Lake Fork Ck 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 November 2023.

How much traffic does Ch 6 over N Fork Lake Fork Ck carry?

About 300 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is Ch 6 over N Fork Lake Fork Ck?

The structure is 124 ft (37.8 m) long with a longest span of 54 ft (16.5 m) and a deck 28 ft wide.

Who owns Ch 6 over N Fork Lake Fork Ck?

It is owned by the County Highway Agency.