US Bridges

Newbold DR over Stream

Good

Marion County, Iowa · 75191405 · Structure no. 000000000239851

Built
2016
9 years old
Condition
Good
inspected December 2022
Type
Slab
Steel
Length
51 ft
1 main span
Daily traffic
207
2022 count
Owner
County
County Highway Agency

About this bridge

Newbold DR over Stream is a steel slab carrying Newbold DR over Stream in Marion County, Iowa. It was built in 2016, so it is 9 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 207 vehicles a day, projected to reach 207 by 2043. The structure is 51 ft (15.5 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNewbold DR
CrossesStream
Location75191405
RouteCounty Highway 0
CountyMarion County
StateIowa
Coordinates41.29613, -93.01899
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating90.6 US tons
Inventory rating54.3 US tons

Structure

Structure typeSlab
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length51 ft (15.5 m)
Longest span49 ft (14.9 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic207 (2022)
Projected traffic207 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Newbold DR over Stream built?

It was built in 2016, making it 9 years old in 2025.

What condition is Newbold DR over Stream 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 December 2022.

How much traffic does Newbold DR over Stream carry?

About 207 vehicles per day (2022 count).

How long is Newbold DR over Stream?

The structure is 51 ft (15.5 m) long with a longest span of 49 ft (14.9 m) and a deck 27 ft wide.

Who owns Newbold DR over Stream?

It is owned by the County Highway Agency.