US Bridges

Csah 61 over Talmadge River

Fair

St. Louis County, Minnesota · 0.3 MI N of JCT CR693 · Structure no. 3597

Built
1921
104 years old
Condition
Fair
inspected June 2024
Type
Arch - Deck
Concrete
Length
41 ft
1 main span
Daily traffic
1,350
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 61 over Talmadge River is a concrete arch - deck carrying Csah 61 over Talmadge River in St. Louis County, Minnesota. It was built in 1921, so it is 104 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 1,350 vehicles a day, projected to reach 1,450 by 2039. The structure is 41 ft (12.6 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCsah 61
CrossesTalmadge River
Location0.3 MI N of JCT CR693
RouteCounty Highway 61
CountySt. Louis County
StateMinnesota
Coordinates46.88372, -91.9146
Functional classUrban Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length41 ft (12.6 m)
Longest span40 ft (12.2 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,350 (2019)
Projected traffic1,450 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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$330 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 61 over Talmadge River built?

It was built in 1921, making it 104 years old in 2025.

What condition is Csah 61 over Talmadge River 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 June 2024.

How much traffic does Csah 61 over Talmadge River carry?

About 1,350 vehicles per day (2019 count).

How long is Csah 61 over Talmadge River?

The structure is 41 ft (12.6 m) long with a longest span of 40 ft (12.2 m) and a deck 36 ft wide.

Who owns Csah 61 over Talmadge River?

It is owned by the County Highway Agency.