US Bridges

1300 South Road over T.F.Northside Main Cnl

Fair

Jerome County, Idaho · 4.2 S. 4.7 E. Hazelton · Structure no. 000000000024730

Built
1975
50 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Prestressed Concrete
Length
102 ft
2 main spans
Daily traffic
430
2023 count
Owner
Local
Other Local Agency

About this bridge

1300 South Road over T.F.Northside Main Cnl is a prestressed concrete tee beam carrying 1300 South Road over T.F.Northside Main Cnl in Jerome County, Idaho. It was built in 1975, so it is 50 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 430 vehicles a day, roughly 2% of them trucks, projected to reach 645 by 2042. The structure is 102 ft (31.1 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries1300 South Road
CrossesT.F.Northside Main Cnl
Location4.2 S. 4.7 E. Hazelton
RouteCounty Highway 0
CountyJerome County
StateIdaho
Coordinates42.53767, -114.04536
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span49 ft (14.9 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic430 (2023)
Projected traffic645 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 1300 South Road over T.F.Northside Main Cnl built?

It was built in 1975, making it 50 years old in 2025.

What condition is 1300 South Road over T.F.Northside Main Cnl 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 1300 South Road over T.F.Northside Main Cnl carry?

About 430 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is 1300 South Road over T.F.Northside Main Cnl?

The structure is 102 ft (31.1 m) long with a longest span of 49 ft (14.9 m) and a deck 24 ft wide.

Who owns 1300 South Road over T.F.Northside Main Cnl?

It is owned by the Other Local Agency.