US Bridges

US-75 HWY over Delaware River

Good

Brown County, Kansas · 9.10 MI N K-20 · Structure no. 999907500070561

Built
1994
31 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
199 ft
3 main spans
Daily traffic
4,596
2023 count
Owner
State
State Highway Agency

About this bridge

US-75 HWY over Delaware River is a prestressed concrete continuous stringer/multi-beam or girder carrying US-75 HWY over Delaware River in Brown County, Kansas. It was built in 1994, so it is 31 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 4,596 vehicles a day, roughly 26% of them trucks, projected to reach 5,608 by 2044. The structure is 199 ft (60.7 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS-75 HWY
CrossesDelaware River
Location9.10 MI N K-20
RouteU.S. Route 75
CountyBrown County
StateKansas
Coordinates39.79917, -95.72917
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating99 US tons
Inventory rating39.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length199 ft (60.7 m)
Longest span66 ft (20.1 m)
Deck width54 ft (16.6 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,596 (2023)
Projected traffic5,608 by 2044
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US-75 HWY over Delaware River built?

It was built in 1994, making it 31 years old in 2025.

What condition is US-75 HWY over Delaware River 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 June 2023.

How much traffic does US-75 HWY over Delaware River carry?

About 4,596 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is US-75 HWY over Delaware River?

The structure is 199 ft (60.7 m) long with a longest span of 66 ft (20.1 m) and a deck 54 ft wide.

Who owns US-75 HWY over Delaware River?

It is owned by the State Highway Agency.