US Bridges

Rs 1845 NW 100 RD over Middle Branch Bluff Ck.

FairPosted for load

Harper County, Kansas · 4.0N 2.0E of Attica · Structure no. 000000000390530

Built
1962
63 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete Continuous
Length
84 ft
3 main spans
Daily traffic
90
2021 count
Owner
County
County Highway Agency

About this bridge

Rs 1845 NW 100 RD over Middle Branch Bluff Ck. is a concrete continuous slab carrying Rs 1845 NW 100 RD over Middle Branch Bluff Ck. in Harper County, Kansas. It was built in 1962, so it is 63 years old, older than the Kansas average of 52.8 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 90 vehicles a day, projected to reach 65 by 2043. The structure is 84 ft (25.5 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesRs 1845 NW 100 RD
CrossesMiddle Branch Bluff Ck.
Location4.0N 2.0E of Attica
RouteCounty Highway 1845
CountyHarper County
StateKansas
Coordinates37.29725, -98.18578
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating17.4 US tons
Inventory rating10.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length84 ft (25.5 m)
Longest span28 ft (8.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic90 (2021)
Projected traffic65 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$275,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 1845 NW 100 RD over Middle Branch Bluff Ck. built?

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

What condition is Rs 1845 NW 100 RD over Middle Branch Bluff Ck. 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 April 2023.

How much traffic does Rs 1845 NW 100 RD over Middle Branch Bluff Ck. carry?

About 90 vehicles per day (2021 count).

How long is Rs 1845 NW 100 RD over Middle Branch Bluff Ck.?

The structure is 84 ft (25.5 m) long with a longest span of 28 ft (8.6 m) and a deck 30 ft wide.

Who owns Rs 1845 NW 100 RD over Middle Branch Bluff Ck.?

It is owned by the County Highway Agency.