US Bridges

Seminary Street over Cedar Creek

Good

Knox County, Illinois · SE-10-T11NR1E · Structure no. 048606200000000

Built
2015
10 years old
Condition
Good
inspected June 2021
Type
Culvert
Concrete Continuous
Length
42 ft
2 main spans
Daily traffic
7,150
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Seminary Street over Cedar Creek is a concrete continuous culvert carrying Seminary Street over Cedar Creek in Knox County, Illinois. It was built in 2015, so it is 10 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 7,150 vehicles a day, roughly 4% of them trucks, projected to reach 7,828 by 2046. The structure is 42 ft (12.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSeminary Street
CrossesCedar Creek
LocationSE-10-T11NR1E
Coordinates40.95222, -90.36456
Functional classUrban 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 inspectionJune 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length42 ft (12.9 m)
Longest span20 ft (6.2 m)
Deck width0 ft (0 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,150 (2022)
Projected traffic7,828 by 2046
Trucks4%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Seminary Street over Cedar Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is Seminary Street over Cedar Creek 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 June 2021.

How much traffic does Seminary Street over Cedar Creek carry?

About 7,150 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Seminary Street over Cedar Creek?

The structure is 42 ft (12.9 m) long with a longest span of 20 ft (6.2 m).

Who owns Seminary Street over Cedar Creek?

It is owned by the City or Municipal Highway Agency.