US Bridges

Rs 1723 Bsn 820 over Trib. to Porcupine Ck.

GoodPosted for load

Jewell County, Kansas · 6.5N of Dentonia · Structure no. 000000000450820

Built
1986
39 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
60 ft
3 main spans
Daily traffic
56
2018 count
Owner
County
County Highway Agency

About this bridge

Rs 1723 Bsn 820 over Trib. to Porcupine Ck. is a steel continuous stringer/multi-beam or girder carrying Rs 1723 Bsn 820 over Trib. to Porcupine Ck. in Jewell County, Kansas. It was built in 1986, so it is 39 years old, younger than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 56 vehicles a day, projected to reach 56 by 2043. The structure is 60 ft (18.4 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRs 1723 Bsn 820
CrossesTrib. to Porcupine Ck.
Location6.5N of Dentonia
RouteCounty Highway 1723
CountyJewell County
StateKansas
Coordinates39.77789, -98.46706
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.8 US tons
Inventory rating19.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length60 ft (18.4 m)
Longest span22 ft (6.8 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic56 (2018)
Projected traffic56 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$275,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 1723 Bsn 820 over Trib. to Porcupine Ck. built?

It was built in 1986, making it 39 years old in 2025.

What condition is Rs 1723 Bsn 820 over Trib. to Porcupine Ck. in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does Rs 1723 Bsn 820 over Trib. to Porcupine Ck. carry?

About 56 vehicles per day (2018 count).

How long is Rs 1723 Bsn 820 over Trib. to Porcupine Ck.?

The structure is 60 ft (18.4 m) long with a longest span of 22 ft (6.8 m) and a deck 27 ft wide.

Who owns Rs 1723 Bsn 820 over Trib. to Porcupine Ck.?

It is owned by the County Highway Agency.