US Bridges

Ch 23 over Big Sandy Crk.

Fair

Morgan County, Illinois · 4 Mi. S. Lynville · Structure no. 069302800000000

Built
1951
74 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
119 ft
3 main spans
Daily traffic
125
2024 count
Owner
County
County Highway Agency

About this bridge

Ch 23 over Big Sandy Crk. is a steel continuous stringer/multi-beam or girder carrying Ch 23 over Big Sandy Crk. in Morgan County, Illinois. It was built in 1951, so it is 74 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 5 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 4% of them trucks, projected to reach 101 by 2046. The structure is 119 ft (36.4 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCh 23
CrossesBig Sandy Crk.
Location4 Mi. S. Lynville
RouteCounty Highway 0
CountyMorgan County
StateIllinois
Coordinates39.66049, -90.32373
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating31.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length119 ft (36.4 m)
Longest span44 ft (13.5 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2024)
Projected traffic101 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

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 23 over Big Sandy Crk. built?

It was built in 1951, making it 74 years old in 2025.

What condition is Ch 23 over Big Sandy Crk. 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 November 2023.

How much traffic does Ch 23 over Big Sandy Crk. carry?

About 125 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Ch 23 over Big Sandy Crk.?

The structure is 119 ft (36.4 m) long with a longest span of 44 ft (13.5 m) and a deck 24 ft wide.

Who owns Ch 23 over Big Sandy Crk.?

It is owned by the County Highway Agency.