US Bridges

Ch 14 over S Plum Creek

Fair

Scott County, Illinois · 2 MI S Exeter · Structure no. 086301200000000

Built
1969
56 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
100
2020 count
Owner
County
County Highway Agency

About this bridge

Ch 14 over S Plum Creek is a prestressed concrete box beam or girders - multiple carrying Ch 14 over S Plum Creek in Scott County, Illinois. It was built in 1969, so it is 56 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 100 vehicles a day, roughly 28% of them trucks, projected to reach 101 by 2046. The structure is 71 ft (21.5 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCh 14
CrossesS Plum Creek
Location2 MI S Exeter
RouteCounty Highway 0
Coordinates39.68585, -90.50327
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating31.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 15
Structure length71 ft (21.5 m)
Longest span69 ft (21.1 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic101 by 2046
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 14 over S Plum Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is Ch 14 over S Plum Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does Ch 14 over S Plum Creek carry?

About 100 vehicles per day (2020 count), of which roughly 28% are trucks.

How long is Ch 14 over S Plum Creek?

The structure is 71 ft (21.5 m) long with a longest span of 69 ft (21.1 m) and a deck 24 ft wide.

Who owns Ch 14 over S Plum Creek?

It is owned by the County Highway Agency.