US Bridges

Ch 6-FAS 642 over Long Branch

Poor

Christian County, Illinois · 6.75 M E Taylorville · Structure no. 011301600000000

Built
1923
102 years old, rebuilt 1973
Condition
Poor
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
84 ft
1 main span
Daily traffic
1,300
2021 count
Owner
County
County Highway Agency

About this bridge

Ch 6-FAS 642 over Long Branch is a steel stringer/multi-beam or girder carrying Ch 6-FAS 642 over Long Branch in Christian County, Illinois. It was built in 1923 and reconstructed in 1973, so it is 102 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 1,300 vehicles a day, roughly 12% of them trucks, projected to reach 1,313 by 2046. The structure is 84 ft (25.6 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCh 6-FAS 642
CrossesLong Branch
Location6.75 M E Taylorville
RouteCounty Highway 0
CountyChristian County
StateIllinois
Coordinates39.54583, -89.14934
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length84 ft (25.6 m)
Longest span44 ft (13.4 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2021)
Projected traffic1,313 by 2046
Trucks12%
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 6-FAS 642 over Long Branch built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 1973.

What condition is Ch 6-FAS 642 over Long 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 December 2024.

How much traffic does Ch 6-FAS 642 over Long Branch carry?

About 1,300 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is Ch 6-FAS 642 over Long Branch?

The structure is 84 ft (25.6 m) long with a longest span of 44 ft (13.4 m) and a deck 38 ft wide.

Who owns Ch 6-FAS 642 over Long Branch?

It is owned by the County Highway Agency.