US Bridges

1600 St. 8.0-P.8 over Stream Lwc

Poor

Allen County, Kansas · 2.0E of Humboldt · Structure no. 000011031006008

Built
1930
95 years old
Condition
Poor
inspected June 2024
Type
Slab
Concrete Continuous
Length
58 ft
2 main spans
Daily traffic
30
2006 count
Owner
County
County Highway Agency

About this bridge

1600 St. 8.0-P.8 over Stream Lwc is a concrete continuous slab carrying 1600 St. 8.0-P.8 over Stream Lwc in Allen County, Kansas. It was built in 1930, so it is 95 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 30 vehicles a day, projected to reach 30 by 2044. The structure is 58 ft (17.6 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries1600 St. 8.0-P.8
CrossesStream Lwc
Location2.0E of Humboldt
RouteCounty Highway 0
CountyAllen County
StateKansas
Coordinates37.80816, -95.39673
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, 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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length58 ft (17.6 m)
Longest span15 ft (4.5 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2006)
Projected traffic30 by 2044
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$53,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 1600 St. 8.0-P.8 over Stream Lwc built?

It was built in 1930, making it 95 years old in 2025.

What condition is 1600 St. 8.0-P.8 over Stream Lwc in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does 1600 St. 8.0-P.8 over Stream Lwc carry?

About 30 vehicles per day (2006 count).

How long is 1600 St. 8.0-P.8 over Stream Lwc?

The structure is 58 ft (17.6 m) long with a longest span of 15 ft (4.5 m) and a deck 18 ft wide.

Who owns 1600 St. 8.0-P.8 over Stream Lwc?

It is owned by the County Highway Agency.