US Bridges

Csah 69 over Swan River

FairPosted for load

Itasca County, Minnesota · 2.1 MI N of JCT Csah 70 · Structure no. 31504

Built
1962
63 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
47 ft
1 main span
Daily traffic
324
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 69 over Swan River is a wood or timber stringer/multi-beam or girder carrying Csah 69 over Swan River in Itasca County, Minnesota. It was built in 1962, so it is 63 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 324 vehicles a day, projected to reach 445 by 2042. The structure is 47 ft (14.3 m) long and 30 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesCsah 69
CrossesSwan River
Location2.1 MI N of JCT Csah 70
RouteCounty Highway 69
Coordinates47.28722, -93.32037
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.6 US tons
Inventory rating21.2 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 20
Structure length47 ft (14.3 m)
Longest span45 ft (13.6 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic324 (2022)
Projected traffic445 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 69 over Swan River built?

It was built in 1962, making it 63 years old in 2025.

What condition is Csah 69 over Swan 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 November 2024.

How much traffic does Csah 69 over Swan River carry?

About 324 vehicles per day (2022 count).

How long is Csah 69 over Swan River?

The structure is 47 ft (14.3 m) long with a longest span of 45 ft (13.6 m) and a deck 30 ft wide.

Who owns Csah 69 over Swan River?

It is owned by the County Highway Agency.