US Bridges

Csah 51 over I 694

Fair

Ramsey County, Minnesota · 0.5 MI E of JCT TH 51 · Structure no. 62824

Built
1986
39 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
185 ft
2 main spans
Daily traffic
18,620
2021 count
Owner
State
State Highway Agency

About this bridge

Csah 51 over I 694 is a steel continuous stringer/multi-beam or girder carrying Csah 51 over I 694 in Ramsey County, Minnesota. It was built in 1986, so it is 39 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 18,620 vehicles a day, projected to reach 21,900 by 2041. The structure is 185 ft (56.3 m) long and 88 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCsah 51
CrossesI 694
Location0.5 MI E of JCT TH 51
RouteCounty Highway 51
CountyRamsey County
StateMinnesota
Coordinates45.05962, -93.14718
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.3 US tons
Inventory rating37.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length185 ft (56.3 m)
Longest span90 ft (27.4 m)
Deck width88 ft (26.7 m)
Roadway width67 ft (20.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,620 (2021)
Projected traffic21,900 by 2041
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Csah 51 over I 694 built?

It was built in 1986, making it 39 years old in 2025.

What condition is Csah 51 over I 694 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does Csah 51 over I 694 carry?

About 18,620 vehicles per day (2021 count).

How long is Csah 51 over I 694?

The structure is 185 ft (56.3 m) long with a longest span of 90 ft (27.4 m) and a deck 88 ft wide.

Who owns Csah 51 over I 694?

It is owned by the State Highway Agency.