Bridge conditions in Tazewell County, Illinois 358 inventoried bridges · 53 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions 2025 National Bridge Inventory, FHWA Compiled August 20, 2026
Of the 358 Tazewell County bridges in the federal inventory, 53 carry a poor rating. That 14.8% share is roughly 2x the national average.
53 of the 358 bridges in Tazewell County, Illinois, are rated in poor condition (14.8%) in the 2025 National Bridge Inventory, as of August 20, 2026 .89 bridges (24.9%) are rated good and 216 (60.3%) fair.
The median Tazewell County bridge was built in 1976 .
The busiest poor-rated bridge is EB US 150 over Illinois River & T&p RR (built 1948), carrying about 30,000 vehicles a day.
Good 24.9% · Fair 60.3% · Poor 14.8% of 358 bridges
Bridges rated poor Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
Bridge Built Vehicles/day Condition EB US 150 over Illinois River & T&p RR 1948 30,000 Poor WB US 150 over Ill River T&p RR 1982 30,000 Poor US 150 & Ill 116 over Il River Tributary 1964 20,400 Poor EB US 24 over Ill 116 1962 19,200 Poor SB Ill 116 over Spring Creek 1965 17,200 Poor NB Ill 116 over Spring Creek 1928 17,200 Poor EB I-74 over N Main Street 1960 13,100 Poor Il 8/ Il 116 over Illinois Riv BNSF T&p 1932 12,400 Poor Il 8/ Il 116 over Richland St. 1966 12,400 Poor Il 8/ Il 116 over Center Street 1962 11,800 Poor Il 8/ Il 116 over Tazewell & Peoria RR 1966 11,800 Poor Il 8/ Il 116 over US 24/ Il 29 1963 11,800 Poor WB I-474 over EB I-74 1979 7,100 Poor East Washington St over Farm Creek 1992 6,950 Poor SB I-155 over Mackinaw River 1970 6,900 Poor NB I-155 over Mackinaw River 1970 6,900 Poor US 150- Meadows Av over Farm CR Tpw RR NS RR 1935 6,600 Poor Ill 9 over Dillon Creek 1962 5,200 Poor Muller Road over I-74 1980 4,500 Poor Fas-461 (ch-16) over Mackinaw River Over 1940 3,950 Poor Ramp Fr ILL116 TO1 over Ill 116 1964 3,500 Poor E. Jefferson St over Bull Run Creek 1974 2,850 Poor Lasalle Blvd over Little Lick Creek 1948 2,800 Poor US 150 over Mud Creek 1956 2,350 Poor Il 29 over Mackinaw River Trib 1963 2,250 Poor Tr 190 over Stream 1966 1,800 Poor Ill 122 over Il Central RR Spur 1975 1,750 Poor FAU-6732 W Jeffers over Farm Creek 1980 1,700 Poor Fas 1481-ch 7 over Prairie Creek 1959 1,650 Poor Ill 122 over I-155 1971 1,500 Poor Tr 156E over Stream 1967 1,450 Poor Country Club Dr over Stream 1962 1,000 Poor Lake Windmere-tr10 over Prairie Creek 1967 775 Poor Fondulac Dr over I-74 1958 700 Poor Fas 469-ch 9 over Little Mackinaw Rv 1961 675 Poor I-474 Rp# 461 over WB I-474 1980 450 Poor I-474 Rp# 461 over I-74 1980 450 Poor Fas 2462-ch 11 over Drainage Ditch 1960 400 Poor Tr 116 over Lost Creek 1972 375 Poor Fas 465-ch 8 over W Fork Sugar Creek 1937 300 Poor Hoffman Rd - Tr 11 over Stream 1963 250 Poor Tr-141 (furrow Rd) over Lost Creek 1961 200 Poor Red Shale Hill-tr1 over Lost Creek 1957 150 Poor Candlewood Ln over Farm Creek 1894 150 Poor Christmas Tree-tr1 over Stream 1978 125 Poor Winkel Rd - Ch 10 over Main Drainage Ditch 1955 100 Poor TR-173 (Proehl Roa over Stream 1977 100 Poor Old Ill 121 over Mackinaw River 1932 75 Poor Center Rd - Tr 275 over Sugar Creek 1964 50 Poor Graff Rd - Tr 314 over M. F. Sugar Creek 1926 50 Poor Augustin Rd - Tr 9 over Mud Creek 1976 50 Poor Tr 65 over Stream 1961 50 Poor Tazewell Rd - Tr 3 over Little Mackinaw Rive 1946 10 Poor
Busiest bridges in the county Bridge Built Vehicles/day Condition I-74 over Ill Riv T&p RR 1958 57,800 Fair EB I-74 over Altorfer St 2005 57,000 Fair EB I-74 over Ill 116(MAIN St) 2005 40,800 Fair I-74 over US150 & Bike Path 2015 39,000 Fair EB US 150 over Illinois River & T&p RR 1948 30,000 Poor WB US 150 over Ill River T&p RR 1982 30,000 Poor WB I-74 over Diversion Channel 1959 28,500 Fair EB I-74 over Diversion Channel 1959 28,500 Fair WB I-74 over Altorfer St 2006 28,500 Fair I-74 over Bull Run 1961 26,200 Fair
Source: FHWA National Bridge Inventory , 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
Every bridge in Tazewell County →
All of Illinois: Illinois bridge conditions by county · every download on the data page .
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected .