US Bridges

Unm 88 over Mc Rail (county 88)

Fair

Ramsey County, Minnesota · 0.1 MI SW of JCT TH35W · Structure no. 9474

Built
1963
62 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
169 ft
3 main spans
Daily traffic
4,151
2022 count
Owner
State
State Highway Agency

About this bridge

Unm 88 over Mc Rail (county 88) is a steel continuous stringer/multi-beam or girder carrying Unm 88 over Mc Rail (county 88) in Ramsey County, Minnesota. It was built in 1963, so it is 62 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 4,151 vehicles a day, roughly 9% of them trucks, projected to reach 4,000 by 2042. The structure is 169 ft (51.6 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUnm 88
CrossesMc Rail (county 88)
Location0.1 MI SW of JCT TH35W
RouteState Highway 88
CountyRamsey County
StateMinnesota
Coordinates45.03953, -93.19142
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionApril 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length169 ft (51.6 m)
Longest span64 ft (19.4 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,151 (2022)
Projected traffic4,000 by 2042
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 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 Unm 88 over Mc Rail (county 88) built?

It was built in 1963, making it 62 years old in 2025.

What condition is Unm 88 over Mc Rail (county 88) 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 April 2024.

How much traffic does Unm 88 over Mc Rail (county 88) carry?

About 4,151 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Unm 88 over Mc Rail (county 88)?

The structure is 169 ft (51.6 m) long with a longest span of 64 ft (19.4 m) and a deck 35 ft wide.

Who owns Unm 88 over Mc Rail (county 88)?

It is owned by the State Highway Agency.