US Bridges

US 30 over Malad R.;n.Hagerman Br.

Fair

Gooding County, Idaho · 3.5 N. Hagerman · Structure no. 000000000013550

Built
1956
69 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
373 ft
3 main spans
Daily traffic
2,100
2023 count
Owner
State
State Highway Agency

About this bridge

US 30 over Malad R.;n.Hagerman Br. is a steel stringer/multi-beam or girder carrying US 30 over Malad R.;n.Hagerman Br. in Gooding County, Idaho. It was built in 1956, so it is 69 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 2,100 vehicles a day, roughly 15% of them trucks, projected to reach 3,150 by 2042. The structure is 373 ft (113.7 m) long and 33 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesUS 30
CrossesMalad R.;n.Hagerman Br.
Location3.5 N. Hagerman
RouteU.S. Route 30
CountyGooding County
StateIdaho
Coordinates42.86511, -114.89625
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3 (+1 approach)
Design loadHS 20
Structure length373 ft (113.7 m)
Longest span114 ft (34.7 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,100 (2023)
Projected traffic3,150 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$4.1 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 30 over Malad R.;n.Hagerman Br. built?

It was built in 1956, making it 69 years old in 2025.

What condition is US 30 over Malad R.;n.Hagerman Br. 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 June 2023.

How much traffic does US 30 over Malad R.;n.Hagerman Br. carry?

About 2,100 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is US 30 over Malad R.;n.Hagerman Br.?

The structure is 373 ft (113.7 m) long with a longest span of 114 ft (34.7 m) and a deck 33 ft wide.

Who owns US 30 over Malad R.;n.Hagerman Br.?

It is owned by the State Highway Agency.