US Bridges

E 420 Road over Lake Hudson

Good

Mayes County, Oklahoma · 6.5SE of HWY 69 & 25 · Structure no. 265050000000000

Built
2008
17 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
812 ft
6 main spans
Daily traffic
1,500
2022 count
Owner
County
County Highway Agency

About this bridge

E 420 Road over Lake Hudson is a prestressed concrete stringer/multi-beam or girder carrying E 420 Road over Lake Hudson in Mayes County, Oklahoma. It was built in 2008, so it is 17 years old, younger than the Oklahoma average of 47.8 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 1,500 vehicles a day, roughly 15% of them trucks, projected to reach 2,400 by 2042. The structure is 812 ft (247.5 m) long and 34 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesE 420 Road
CrossesLake Hudson
Location6.5SE of HWY 69 & 25
RouteCounty Highway E0420
CountyMayes County
StateOklahoma
Coordinates36.40861, -95.16139
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.1 US tons
Inventory rating48.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length812 ft (247.5 m)
Longest span140 ft (42.7 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2022)
Projected traffic2,400 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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$2.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was E 420 Road over Lake Hudson built?

It was built in 2008, making it 17 years old in 2025.

What condition is E 420 Road over Lake Hudson 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 April 2023.

How much traffic does E 420 Road over Lake Hudson carry?

About 1,500 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is E 420 Road over Lake Hudson?

The structure is 812 ft (247.5 m) long with a longest span of 140 ft (42.7 m) and a deck 34 ft wide.

Who owns E 420 Road over Lake Hudson?

It is owned by the County Highway Agency.