US Bridges

Rs 687 F-20 over Harris Creek

Good

Nemaha County, Kansas · 3.0N.E. of Seneca · Structure no. 000000000660220

Built
1996
29 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete Continuous
Length
152 ft
3 main spans
Daily traffic
60
2008 count
Owner
County
County Highway Agency

About this bridge

Rs 687 F-20 over Harris Creek is a concrete continuous slab carrying Rs 687 F-20 over Harris Creek in Nemaha County, Kansas. It was built in 1996, so it is 29 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.

It carries about 60 vehicles a day, projected to reach 75 by 2044. The structure is 152 ft (46.3 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRs 687 F-20
CrossesHarris Creek
Location3.0N.E. of Seneca
RouteCounty Highway 687
CountyNemaha County
StateKansas
Coordinates39.85576, -96.01777
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 protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.4 US tons
Inventory rating55.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length152 ft (46.3 m)
Longest span60 ft (18.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic60 (2008)
Projected traffic75 by 2044
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$240,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 687 F-20 over Harris Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Rs 687 F-20 over Harris Creek 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 2024.

How much traffic does Rs 687 F-20 over Harris Creek carry?

About 60 vehicles per day (2008 count).

How long is Rs 687 F-20 over Harris Creek?

The structure is 152 ft (46.3 m) long with a longest span of 60 ft (18.2 m) and a deck 28 ft wide.

Who owns Rs 687 F-20 over Harris Creek?

It is owned by the County Highway Agency.