M-3 (gratiot Ave) over I-375

Fair Condition63 years old12,807 vehicles/day

Location

StateMichigan
CountyWayne
LocationDowntown Detroit
CarriesM-3 (gratiot Ave)
CrossesI-375
Coordinates42.34016, -83.04134

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure5 (Fair)
Scour CriticalNot applicable

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length298.9 ft (91.1 m)
Max Span77.8 ft (23.7 m)
Deck Width119.8 ft (36.5 m)
Deck Area3325.2 sq m
Main Spans5
Year Built1963 (reconstructed 1996)

Traffic

Avg Daily Traffic12,807 (2007)
Truck Traffic9%
Lanes On Bridge8
Lanes Under Bridge8

Inspection & Ownership

Last Inspection523
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000011799

Nearby Bridges

Madison AVE Ramps over I-375 0.0 mi Fair I-75 N To I-375 N over I-375 0.2 mi Fair I-75 S E Turn RD over I-375 0.2 mi Poor M-3 NB Conn over I-75 & I-375 0.3 mi Good M-3 EB Conn over I-375 & I-75 Ramp 0.3 mi Fair M-3 SB Conn over I-75 & I-375 0.3 mi Good M-3 WB Conn over I-375 & I-75 Ramp 0.3 mi Fair Monroe AVE over I-375 0.3 mi Good Brush ST Entr Rmp over I-75 SB To EB Ramp 0.3 mi Good I-75 NB over I-75 SB To EB Ramp 0.3 mi Fair