US Bridges

H20 125th ST over Middle Nodaway River

Good

Adams County, Iowa · 073341409 · Structure no. 000000000060801

Built
2015
10 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
246 ft
3 main spans
Daily traffic
170
2022 count
Owner
County
County Highway Agency

About this bridge

H20 125th ST over Middle Nodaway River is a prestressed concrete stringer/multi-beam or girder carrying H20 125th ST over Middle Nodaway River in Adams County, Iowa. It was built in 2015, so it is 10 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 170 vehicles a day, roughly 20% of them trucks, projected to reach 170 by 2044. The structure is 246 ft (75 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesH20 125th ST
CrossesMiddle Nodaway River
Location073341409
RouteCounty Highway 0
StateIowa
Coordinates41.12226, -94.72284
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating55.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length246 ft (75 m)
Longest span82 ft (25 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (2022)
Projected traffic170 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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)
NavigationNot applicable (no waterway)

Frequently asked questions

When was H20 125th ST over Middle Nodaway River built?

It was built in 2015, making it 10 years old in 2025.

What condition is H20 125th ST over Middle Nodaway River 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 June 2024.

How much traffic does H20 125th ST over Middle Nodaway River carry?

About 170 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is H20 125th ST over Middle Nodaway River?

The structure is 246 ft (75 m) long with a longest span of 82 ft (25 m) and a deck 33 ft wide.

Who owns H20 125th ST over Middle Nodaway River?

It is owned by the County Highway Agency.