US Bridges

Csah 77 over Mc RY

PoorPosted for load

Ramsey County, Minnesota · 0.2 MI E of JCT Csah 45 · Structure no. 4533

Built
1926
99 years old
Condition
Poor
inspected November 2024
Type
Channel Beam
Prestressed Concrete
Length
66 ft
3 main spans
Daily traffic
5,800
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 77 over Mc RY is a prestressed concrete channel beam carrying Csah 77 over Mc RY in Ramsey County, Minnesota. It was built in 1926, so it is 99 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 5,800 vehicles a day, projected to reach 5,800 by 2039. The structure is 66 ft (20.1 m) long and 64 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCsah 77
CrossesMc RY
Location0.2 MI E of JCT Csah 45
RouteCounty Highway 77
CountyRamsey County
StateMinnesota
Coordinates45.06014, -93.1954
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25 US tons
Inventory rating19.3 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span22 ft (6.7 m)
Deck width64 ft (19.4 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,800 (2016)
Projected traffic5,800 by 2039
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$535 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Csah 77 over Mc RY built?

It was built in 1926, making it 99 years old in 2025.

What condition is Csah 77 over Mc RY in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Csah 77 over Mc RY carry?

About 5,800 vehicles per day (2016 count).

How long is Csah 77 over Mc RY?

The structure is 66 ft (20.1 m) long with a longest span of 22 ft (6.7 m) and a deck 64 ft wide.

Who owns Csah 77 over Mc RY?

It is owned by the County Highway Agency.