US Bridges

Ch 4 - FAS 637 over Brown Branch

Poor

Christian County, Illinois · 4 Mi. E Stonington · Structure no. 011500100000000

Built
1965
60 years old
Condition
Poor
inspected November 2024
Type
Culvert
Steel
Length
27 ft
3 main spans
Daily traffic
600
2021 count
Owner
County
County Highway Agency

About this bridge

Ch 4 - FAS 637 over Brown Branch is a steel culvert carrying Ch 4 - FAS 637 over Brown Branch in Christian County, Illinois. It was built in 1965, so it is 60 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 600 vehicles a day, roughly 8% of them trucks, projected to reach 606 by 2046. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCh 4 - FAS 637
CrossesBrown Branch
Location4 Mi. E Stonington
RouteCounty Highway 0
CountyChristian County
StateIllinois
Coordinates39.63715, -89.11529
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: 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 rating31.1 US tons
Inventory rating18.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2021)
Projected traffic606 by 2046
Trucks8%
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 4 - FAS 637 over Brown Branch built?

It was built in 1965, making it 60 years old in 2025.

What condition is Ch 4 - FAS 637 over Brown Branch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Ch 4 - FAS 637 over Brown Branch carry?

About 600 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Ch 4 - FAS 637 over Brown Branch?

The structure is 27 ft (8.2 m) long with a longest span of 7 ft (2.1 m).

Who owns Ch 4 - FAS 637 over Brown Branch?

It is owned by the County Highway Agency.