US Bridges

Ch 4 over Sandy Creek

Fair

Scott County, Illinois · 4.5 MI N Manchester · Structure no. 086301800000000

Built
1972
53 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
125
2020 count
Owner
County
County Highway Agency

About this bridge

Ch 4 over Sandy Creek is a prestressed concrete box beam or girders - multiple carrying Ch 4 over Sandy Creek in Scott County, Illinois. It was built in 1972, so it is 53 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 125 vehicles a day, roughly 2% of them trucks, projected to reach 126 by 2046. The structure is 73 ft (22.1 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCh 4
CrossesSandy Creek
Location4.5 MI N Manchester
RouteCounty Highway 0
CountyScott County
StateIllinois
Coordinates39.61024, -90.33862
Functional classRural Major 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating32.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length73 ft (22.1 m)
Longest span70 ft (21.3 m)
Deck width31 ft (9.3 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2020)
Projected traffic126 by 2046
Trucks2%
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 4 over Sandy Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Ch 4 over Sandy 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 4 over Sandy Creek carry?

About 125 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Ch 4 over Sandy Creek?

The structure is 73 ft (22.1 m) long with a longest span of 70 ft (21.3 m) and a deck 31 ft wide.

Who owns Ch 4 over Sandy Creek?

It is owned by the County Highway Agency.