Ch 3 over Unknown Creek

Fair Condition48 years old275 vehicles/day

Location

StateIllinois
CountyJersey
Location0.5 Miles Sof Kemper
CarriesCh 3
CrossesUnknown Creek
Coordinates39.21288, -90.16594

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Channel/Waterway6 (Satisfactory)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length41.0 ft (12.5 m)
Max Span39.0 ft (11.9 m)
Deck Width24.3 ft (7.4 m)
Deck Area92.5 sq m
Main Spans1
Year Built1978

Traffic

Avg Daily Traffic275 (2022)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last Inspection223
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number042309700000000

Nearby Bridges

Tr 9 over Trib Elm Branch 0.3 mi Good Tr 303 over Creek 1.4 mi Fair Fas 746 over Trib Of Macoupin Cre 1.7 mi Fair Tr 5 over Elm Branch 1.9 mi Good Tr 10 over Trib. Of Macoupin Ck 2.2 mi Fair Tr 17 over Trib To Macoupin Ck 2.5 mi Good Ch 3 over Trib To Macoupin Crk 2.5 mi Good Tr 8 over Trib. Of Macoupin Ck 2.7 mi Good Ch 23 over Macoupin Creek 2.8 mi Fair Tr 8 over Trib Macoupin Creek 3.0 mi Good