US Bridges

Csah 55 over BNSF RR

PoorPosted for load

Ramsey County, Minnesota · 0.8 MI N of JCT TH 94 · Structure no. 5664

Built
1939
86 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
486 ft
9 main spans
Daily traffic
7,229
2011 count
Owner
County
County Highway Agency

About this bridge

Csah 55 over BNSF RR is a steel continuous stringer/multi-beam or girder carrying Csah 55 over BNSF RR in Ramsey County, Minnesota. It was built in 1939, so it is 86 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 7,229 vehicles a day, projected to reach 6,900 by 2029. The structure is 486 ft (148 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCsah 55
CrossesBNSF RR
Location0.8 MI N of JCT TH 94
RouteCounty Highway 55
CountyRamsey County
StateMinnesota
Coordinates44.96287, -93.09792
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating29.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length486 ft (148 m)
Longest span66 ft (20.1 m)
Deck width57 ft (17.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,229 (2011)
Projected traffic6,900 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byRailroad
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$1,000 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Csah 55 over BNSF RR built?

It was built in 1939, making it 86 years old in 2025.

What condition is Csah 55 over BNSF RR 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 April 2024.

How much traffic does Csah 55 over BNSF RR carry?

About 7,229 vehicles per day (2011 count).

How long is Csah 55 over BNSF RR?

The structure is 486 ft (148 m) long with a longest span of 66 ft (20.1 m) and a deck 57 ft wide.

Who owns Csah 55 over BNSF RR?

It is owned by the County Highway Agency and maintained by the Railroad.