US Bridges

FAS 1631(CH 9) over Stream

Fair

Shelby County, Illinois · 2.2 MI N Trowbridge · Structure no. 087503600000000

Built
1958
67 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
350
2024 count
Owner
County
County Highway Agency

About this bridge

FAS 1631(CH 9) over Stream is a concrete culvert carrying FAS 1631(CH 9) over Stream in Shelby County, Illinois. It was built in 1958, so it is 67 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 350 vehicles a day, roughly 11% of them trucks, projected to reach 354 by 2046. The structure is 22 ft (6.7 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFAS 1631(CH 9)
CrossesStream
Location2.2 MI N Trowbridge
RouteCounty Highway 0
CountyShelby County
StateIllinois
Coordinates39.34301, -88.51788
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.8 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2024)
Projected traffic354 by 2046
Trucks11%
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 FAS 1631(CH 9) over Stream built?

It was built in 1958, making it 67 years old in 2025.

What condition is FAS 1631(CH 9) over 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 March 2024.

How much traffic does FAS 1631(CH 9) over Stream carry?

About 350 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is FAS 1631(CH 9) over Stream?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns FAS 1631(CH 9) over Stream?

It is owned by the County Highway Agency.