US Bridges

J48 250th ST over Unnamed Trib to Grand Rv

Good

Decatur County, Iowa · 068261600 · Structure no. 000000000137321

Built
2023
2 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete Continuous
Length
131 ft
3 main spans
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

J48 250th ST over Unnamed Trib to Grand Rv is a concrete continuous slab carrying J48 250th ST over Unnamed Trib to Grand Rv in Decatur County, Iowa. It was built in 2023, so it is 2 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20 vehicles a day, projected to reach 20 by 2043. The structure is 131 ft (39.9 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesJ48 250th ST
CrossesUnnamed Trib to Grand Rv
Location068261600
RouteCounty Highway 0
CountyDecatur County
StateIowa
Coordinates40.68552, -93.86164
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating56.8 US tons
Inventory rating43.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length131 ft (39.9 m)
Longest span51 ft (15.5 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic20 by 2043
Trucks0%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$30,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was J48 250th ST over Unnamed Trib to Grand Rv built?

It was built in 2023, making it 2 years old in 2025.

What condition is J48 250th ST over Unnamed Trib to Grand Rv 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 November 2023.

How much traffic does J48 250th ST over Unnamed Trib to Grand Rv carry?

About 20 vehicles per day (2022 count).

How long is J48 250th ST over Unnamed Trib to Grand Rv?

The structure is 131 ft (39.9 m) long with a longest span of 51 ft (15.5 m) and a deck 27 ft wide.

Who owns J48 250th ST over Unnamed Trib to Grand Rv?

It is owned by the County Highway Agency.