US Bridges

FAP 328 (us 45) over Seminary Ck Overflow

Good

Clay County, Illinois · 4 MI S JCT US 50 · Structure no. 013201100000000

Built
2009
16 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
2,250
2023 count
Owner
State
State Highway Agency

About this bridge

FAP 328 (us 45) over Seminary Ck Overflow is a concrete culvert carrying FAP 328 (us 45) over Seminary Ck Overflow in Clay 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 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 2,250 vehicles a day, roughly 16% of them trucks, projected to reach 2,374 by 2046. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 65.9 mi (106 km).

CarriesFAP 328 (us 45)
CrossesSeminary Ck Overflow
Location4 MI S JCT US 50
RouteU.S. Route 45
Coordinates38.61723, -88.43826
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.5 US tons
Inventory rating43.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,250 (2023)
Projected traffic2,374 by 2046
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed65.9 mi (106 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 FAP 328 (us 45) over Seminary Ck Overflow built?

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

What condition is FAP 328 (us 45) over Seminary Ck Overflow 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 April 2024.

How much traffic does FAP 328 (us 45) over Seminary Ck Overflow carry?

About 2,250 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is FAP 328 (us 45) over Seminary Ck Overflow?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.6 m).

Who owns FAP 328 (us 45) over Seminary Ck Overflow?

It is owned by the State Highway Agency.