US Bridges

G-20.8 150 over Parsons Creek

Fair

Washington County, Kansas · 9.9S 2.5E of Haddam · Structure no. 001010829003388

Built
1987
38 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete Continuous
Length
103 ft
3 main spans
Daily traffic
60
2014 count
Owner
County
County Highway Agency

About this bridge

G-20.8 150 over Parsons Creek is a concrete continuous slab carrying G-20.8 150 over Parsons Creek in Washington County, Kansas. It was built in 1987, so it is 38 years old, younger 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.

It carries about 60 vehicles a day, projected to reach 72 by 2043. The structure is 103 ft (31.4 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesG-20.8 150
CrossesParsons Creek
Location9.9S 2.5E of Haddam
RouteCounty Highway 0
StateKansas
Coordinates39.7149, -97.25587
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length103 ft (31.4 m)
Longest span40 ft (12.1 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 (2014)
Projected traffic72 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was G-20.8 150 over Parsons Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is G-20.8 150 over Parsons Creek 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 G-20.8 150 over Parsons Creek carry?

About 60 vehicles per day (2014 count).

How long is G-20.8 150 over Parsons Creek?

The structure is 103 ft (31.4 m) long with a longest span of 40 ft (12.1 m) and a deck 28 ft wide.

Who owns G-20.8 150 over Parsons Creek?

It is owned by the County Highway Agency.