US Bridges

N 3800 E Rd(olson) over Burgess Cnl;w.Rigby Br

Fair

Jefferson County, Idaho · 0.4 S. 1.4 W. Rigby · Structure no. 000000000032525

Built
1974
51 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
300
2023 count
Owner
County
County Highway Agency

About this bridge

N 3800 E Rd(olson) over Burgess Cnl;w.Rigby Br is a prestressed concrete tee beam carrying N 3800 E Rd(olson) over Burgess Cnl;w.Rigby Br in Jefferson County, Idaho. It was built in 1974, so it is 51 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 6 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 300 vehicles a day, roughly 10% of them trucks, projected to reach 450 by 2039. The structure is 38 ft (11.6 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN 3800 E Rd(olson)
CrossesBurgess Cnl;w.Rigby Br
Location0.4 S. 1.4 W. Rigby
RouteCounty Highway 0
CountyJefferson County
StateIdaho
Coordinates43.66394, -111.94378
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating38 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length38 ft (11.6 m)
Longest span37 ft (11.3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic450 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$364,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was N 3800 E Rd(olson) over Burgess Cnl;w.Rigby Br built?

It was built in 1974, making it 51 years old in 2025.

What condition is N 3800 E Rd(olson) over Burgess Cnl;w.Rigby 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 March 2023.

How much traffic does N 3800 E Rd(olson) over Burgess Cnl;w.Rigby Br carry?

About 300 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is N 3800 E Rd(olson) over Burgess Cnl;w.Rigby Br?

The structure is 38 ft (11.6 m) long with a longest span of 37 ft (11.3 m) and a deck 28 ft wide.

Who owns N 3800 E Rd(olson) over Burgess Cnl;w.Rigby Br?

It is owned by the County Highway Agency.