Alger County, MI
9 public highway bridges
Alger County Bridge Snapshot
Alger County, Michigan contains 9 public highway bridges in the FHWA National Bridge Inventory. Roughly 66.7% are rated “Good,” 22.2% “Fair,” 11.1% “Poor,” and 11.1% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.
Inspections in MI are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Condition Distribution
All Bridges (9)
SAND LAKE ROAD
FairOver: SAND RIVER
0.25 MI S OF SAND RIVER, Alger, MI
MINERS CASTLE ROAD
FairOver: MINERS RIVER
0.5 MILES NORTH OF MINERS, Alger, MI
OLD US-41
GoodOver: WHITEFISH RIVER
0.75 MI S OF TRENARY, Alger, MI
ROCKRIVER ROAD
GoodOver: ROCK RIVER
1.1 MI S OF M-28, Alger, MI
NORTH POINT DRIVE
GoodOver: LAUGHING WHITEFISH RIVER
1.5 MI N OF DEERTON, Alger, MI
USFS RTE 2473
GoodOver: BIG INDIAN RIVER
0.5 MI W OF MIRROR LAKE, Alger, MI
ROUND LAKE RD FH78
GoodOver: STURGEON RIVER
2 MI E OF W BR LAKE RD, Alger, MI
ROUND LAKE RD FH78
GoodOver: WEST BRANCH CREEK
0.25 MI N W BRANCH LAKE, Alger, MI
WOODLAND ROAD
Structurally DeficientOver: AU TRAIN RIVER
0.75 MI E OF AU TRAIN, Alger, MI
Read our methodology — how this data is sourced, computed, and verified.
Related
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |