US Bridges

Csah 19 over Tibbetts Brook

Fair

Mille Lacs County, Minnesota · 1.9 MI N of JCT Csah 11 · Structure no. 48516

Built
1974
51 years old
Condition
Fair
inspected June 2023
Type
Channel Beam
Prestressed Concrete
Length
69 ft
3 main spans
Daily traffic
365
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 19 over Tibbetts Brook is a prestressed concrete channel beam carrying Csah 19 over Tibbetts Brook in Mille Lacs County, Minnesota. It was built in 1974, so it is 51 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 365 vehicles a day, projected to reach 280 by 2038. The structure is 69 ft (21.1 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 19
CrossesTibbetts Brook
Location1.9 MI N of JCT Csah 11
RouteCounty Highway 19
CountyMille Lacs County
StateMinnesota
Coordinates45.85061, -93.70316
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.
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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating66.6 US tons
Inventory rating39.8 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length69 ft (21.1 m)
Longest span31 ft (9.5 m)
Deck width38 ft (11.6 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic365 (2018)
Projected traffic280 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 19 over Tibbetts Brook built?

It was built in 1974, making it 51 years old in 2025.

What condition is Csah 19 over Tibbetts Brook 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 2023.

How much traffic does Csah 19 over Tibbetts Brook carry?

About 365 vehicles per day (2018 count).

How long is Csah 19 over Tibbetts Brook?

The structure is 69 ft (21.1 m) long with a longest span of 31 ft (9.5 m) and a deck 38 ft wide.

Who owns Csah 19 over Tibbetts Brook?

It is owned by the County Highway Agency.