US Bridges

Csah 77 over I 694

Fair

Ramsey County, Minnesota · 0.4 MI W of JCT TH 35W · Structure no. 9389

Built
1964
61 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
196 ft
4 main spans
Daily traffic
9,000
2016 count
Owner
State
State Highway Agency

About this bridge

Csah 77 over I 694 is a steel continuous stringer/multi-beam or girder carrying Csah 77 over I 694 in Ramsey County, Minnesota. It was built in 1964, so it is 61 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 9,000 vehicles a day, projected to reach 9,000 by 2039. The structure is 196 ft (59.7 m) long and 57 ft wide.

Location

Open in Google Maps
CarriesCsah 77
CrossesI 694
Location0.4 MI W of JCT TH 35W
RouteCounty Highway 77
CountyRamsey County
StateMinnesota
Coordinates45.06667, -93.19317
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating62.9 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length196 ft (59.7 m)
Longest span67 ft (20.5 m)
Deck width57 ft (17.3 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,000 (2016)
Projected traffic9,000 by 2039
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
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$1,000 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Csah 77 over I 694 built?

It was built in 1964, making it 61 years old in 2025.

What condition is Csah 77 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 July 2023.

How much traffic does Csah 77 over I 694 carry?

About 9,000 vehicles per day (2016 count).

How long is Csah 77 over I 694?

The structure is 196 ft (59.7 m) long with a longest span of 67 ft (20.5 m) and a deck 57 ft wide.

Who owns Csah 77 over I 694?

It is owned by the State Highway Agency.