SB I-155 over MACKINAW RIVER

1mi N JCT I-155 /122 · County 179, Illinois · Built 1970 · 2 Lanes · 6,900 vehicles/day

Structurally Deficient — One or more key components rated 4 (Poor) or below

Overall

Serious

Deck

4

Poor

Superstructure

3

Serious

Substructure

5

Fair

Condition Ratings

Component	Rating	Description
Deck	4	Poor
Superstructure	3	Serious
Substructure	5	Fair

Location

40.439194, -89.46665

This bridge is in worse condition than 96.4% of bridges in County 179. The average bridge in Illinois is 0 years old; this one is 56 years old.

Nearby Bridges

NB I-155 over MACKINAW RIVER

Serious Built 1970

OLD ILL 121 over MACKINAW RIVER

Serious Built 1932

WILDLIFE DR - TR 2 over LITTLE MACKINAW R.

Fair Built 1969

ILL 122 over I-155

Poor Built 1971

TULLAMORE RD-TR 21 over INDIAN CREEK

Fair Built 1952

FEATHER RD - FAS 4 over I-155

Fair Built 1990

SB I-155 over Indian Creek

Good Built 2024

NB I-155 over INDIAN CR

Good Built 2023

SBI 122 (Prairie R over INDIAN CR

Good Built 2021

TULLAMORE RD-TR 21 over STREAM

Fair Built 1900

Bridge Details

Structure #: 090009200000000
Year Built: 1970
Length: 167.6 m (549.9 ft)
Max Span: 42.7 m
Width: 14 m (45.9 ft)
Lanes: 2
Daily Traffic: 6,900
Material: Steel Continuous
Design: Stringer/Multi-beam or Girder
Owner: State Highway Agency
Last Inspected: N/A
Est. Improvement: N/A
Total Project Cost: N/A

Data from FHWA National Bridge Inventory. Bridge conditions may have changed since the last inspection. This site is not affiliated with FHWA. Do not use for route clearance purposes.