US Bridges

Hereford Lane over I-25

Poor

Natrona County, Wyoming · Casper Marginal · Structure no. BMA

Built
1960
65 years old
Condition
Poor
inspected June 2024
Type
Frame
Concrete
Length
90 ft
1 main span
Daily traffic
136
2024 count
Owner
State
State Highway Agency

About this bridge

Hereford Lane over I-25 is a concrete frame carrying Hereford Lane over I-25 in Natrona County, Wyoming. It was built in 1960, so it is 65 years old, older than the Wyoming average of 48.4 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 136 vehicles a day, roughly 18% of them trucks, projected to reach 190 by 2043. The structure is 90 ft (27.4 m) long and 47 ft wide.

Location

Open in Google Maps
CarriesHereford Lane
CrossesI-25
LocationCasper Marginal
RouteCity Street 34
CountyNatrona County
StateWyoming
Coordinates42.85555, -106.29177
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.2 US tons
Inventory rating36.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span86 ft (26.2 m)
Deck width47 ft (14.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic136 (2024)
Projected traffic190 by 2043
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$3,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Hereford Lane over I-25 built?

It was built in 1960, making it 65 years old in 2025.

What condition is Hereford Lane over I-25 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 Hereford Lane over I-25 carry?

About 136 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is Hereford Lane over I-25?

The structure is 90 ft (27.4 m) long with a longest span of 86 ft (26.2 m) and a deck 47 ft wide.

Who owns Hereford Lane over I-25?

It is owned by the State Highway Agency.