US Bridges

Wyo 789 over Rogers/Gregg Ditch

Good

Fremont County, Wyoming · Lander - Riverton · Structure no. DAX

Built
1976
49 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
102 ft
3 main spans
Daily traffic
3,637
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 789 over Rogers/Gregg Ditch is a steel stringer/multi-beam or girder carrying Wyo 789 over Rogers/Gregg Ditch in Fremont County, Wyoming. It was built in 1976, so it is 49 years old, older than the Wyoming average of 48.4 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 3,637 vehicles a day, roughly 7% of them trucks, projected to reach 5,092 by 2043. The structure is 102 ft (31.1 m) long and 43 ft wide.

CarriesWyo 789
CrossesRogers/Gregg Ditch
LocationLander - Riverton
RouteState Highway 789
StateWyoming
Coordinates42.91107, -108.54098
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span39 ft (11.9 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,637 (2024)
Projected traffic5,092 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wyo 789 over Rogers/Gregg Ditch built?

It was built in 1976, making it 49 years old in 2025.

What condition is Wyo 789 over Rogers/Gregg Ditch 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 August 2024.

How much traffic does Wyo 789 over Rogers/Gregg Ditch carry?

About 3,637 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Wyo 789 over Rogers/Gregg Ditch?

The structure is 102 ft (31.1 m) long with a longest span of 39 ft (11.9 m) and a deck 43 ft wide.

Who owns Wyo 789 over Rogers/Gregg Ditch?

It is owned by the State Highway Agency.