BridgeReportCard
HomeIllinoisMason County › All bridges

Every bridge in Mason County, Illinois

86 inventoried bridges, busiest first

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

BridgeBuiltVehicles/dayCondition
US 136 / Il 29 over Main Ditch19582,500Fair
Ill 29 over Allens Grove Ditch19592,450Good
Fap 614 (il 78) over Ditch19782,250Fair
Il 29 over Salt Creek20022,000Fair
Il 29 over Sleepy Hollow Ditch19592,000Fair
Ill 78 over White Oak Creek19311,750Fair
US 136 over Ditch19661,700Fair
Ill 97 over Pecan Run Creek19861,600Good
Il 78 over Wolf Lake20101,450Fair
Ill 10 over Ditch19271,200Fair
Ill 10 over Drainage Ditch19881,200Good
Ill 10 over Ross & Tyrell Ditch19881,200Good
US 136 over Allens Grove Ditch19621,150Fair
US 136 over Red Oak Ditch19621,150Fair
Fas 567 (ch 20) over Quiver Creek20221,000Good
Fas 567 over C & Im RR Co19491,000Fair
County Highway 4 over Breed Love Ditch1998625Good
County Highway 4 over Hickory Grove Ditch1998625Good
County Highway 4 over Meeker Ditch1998625Good
Fas 461 Co Hwy 4 over Quiver Ditch1948550Fair
Il 10 over Crane Creek1925550Fair
Il 10 over Ditch1970550Fair
Il 10 over Ditch1970550Fair
Fas 1585(CH 21) over Crane Creek2015400Good
Fas 572 Co Hwy 5 over Crane Creek1956225Fair
Fas 1595 (ch 19) over Sleepy Hallow Ditch2012200Good
Fas 572 (ch 5) over Duff Armstrong Ditch2012175Fair
Fas 572 Ch 5 over Samuals Ditch2008175Good
Tr 171 over Prairie Ck1978175Fair
Tr 171 over SW Mason City Ditch1983175Fair
Ch 10 over Ash Grove Ditch1976150Fair
Fas 1586 over Drainage Ditch2004150Good
Tr 206A over Main Ditch1956150Fair
Fas 1587 / Ch 2 over Branch of Jordan Crk1995125Good
Fas 1587 / Ch 2 over Branch of Jordan Crk1995125Good
Fas 1587 over Branch of Jordan Crk1995125Good
Fas 568 CH3 over Quiver Creek2010100Good
Tr 105 over White Oak Creek1959100Fair
Tr 156 over Furrer Ditch1972100Fair
Tr 82 over Mason-tazewell Ditch1970100Fair
Tr 129 over Duff Armstrong Ditch198875Fair
Tr 178 over Furrer Ditch197075Good
Tr 193A over Salt Creek Tributary201075Fair
Tr 276 over Rogers Ditch197075Fair
Tr 39 over Mason Tazewell Ditch198775Good
Tr 47 over Red Oak Ditch200775Good
Ch 11 over Red Oak Ditch202450Good
Tr 109 over Crane Creek195050Fair
Tr 125 over Prarie Creek Branch198350Good
Tr 131 A over Prairie Ck197950Fair
Tr 150 over Mason Tazewell Ditch191050Fair
Tr 165 over Crane CR197650Fair
Tr 171 over Sleepy Hollow Branch198950Good
Tr 189 over Cenw RR198450Fair
Tr 190 over Main Ditch197250Poor
Tr 218 over Main Ditch198050Fair
Tr 234 over Allens Grove Ditch198350Fair
Tr 234 over Main Ditch201850Good
Tr 242 over Allens Grove Ditch202450Good
Tr 268 over Rogers Ditch190050Fair
Tr 27 over Main Ditch198350Fair
Tr 276 over Sugar Creek198050Fair
Tr 41 over Mason-tazewell Ditch196550Good
Tr 59 over Allens Grove Ditch200750Good
Tr 59 over Main Ditch Branch199150Good
Tr 83 over Hardin Ditch197650Fair
Tr 95 over Hardin Ditch197650Fair
Old US 136 over County Ditch192825Fair
TR43 over Quiver Creek198525Fair
Tr 10 over Fish Creek199125Good
Tr 100 (2400E) over Crane Creek201525Fair
Tr 105 over White Oak Creek196425Fair
Tr 112 over Mason Tazewell Ditch198725Fair
Tr 125 over Becker Ditch198225Fair
Tr 129 over Crane CR200825Good
Tr 129 over Duff Armstrong Ditch198825Fair
Tr 153 over Killion Ditch197225Poor
Tr 153 over Local Ditch199625Fair
Tr 158 over Furrer Ditch198325Fair
Tr 194 over Sleepy Hollow Ditch197225Fair
Tr 208 over Sleepy Hollow Ditch198625Poor
Tr 254 over Ash Grove Ditch197625Fair
Tr 266 over Allens Grove Ditch201225Good
Tr 43 over Quiver CR198425Fair
Tr 75 over Allens Grove Ditch201325Good
Tr 165 over Jordan Creek198820Fair

Source: FHWA National Bridge Inventory, 2025.

Mason County bridge conditions · Illinois bridges by county.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.