US Bridges

Ch 1 over Unnamed Stream

Fair

Saline County, Illinois · 2.5 MI N of Raleigh · Structure no. 083320100000000

Built
1996
29 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
350
2020 count
Owner
County
County Highway Agency

About this bridge

Ch 1 over Unnamed Stream is a prestressed concrete box beam or girders - multiple carrying Ch 1 over Unnamed Stream in Saline County, Illinois. It was built in 1996, so it is 29 years old, younger 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 350 vehicles a day, roughly 20% of them trucks, projected to reach 354 by 2046. The structure is 41 ft (12.5 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCh 1
CrossesUnnamed Stream
Location2.5 MI N of Raleigh
RouteCounty Highway 0
CountySaline County
StateIllinois
Coordinates37.87046, -88.53127
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span38 ft (11.7 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2020)
Projected traffic354 by 2046
Trucks20%
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 1 over Unnamed Stream built?

It was built in 1996, making it 29 years old in 2025.

What condition is Ch 1 over Unnamed Stream 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 May 2024.

How much traffic does Ch 1 over Unnamed Stream carry?

About 350 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is Ch 1 over Unnamed Stream?

The structure is 41 ft (12.5 m) long with a longest span of 38 ft (11.7 m) and a deck 28 ft wide.

Who owns Ch 1 over Unnamed Stream?

It is owned by the County Highway Agency.