US Bridges

Ia 16 over BNSF RR

Fair

Wapello County, Iowa · 0.4 Mi. S of Jct. U.S. 34 · Structure no. 000000000605180

Built
1984
41 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
188 ft
3 main spans
Daily traffic
2,440
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 16 over BNSF RR is a prestressed concrete stringer/multi-beam or girder carrying Ia 16 over BNSF RR in Wapello County, Iowa. It was built in 1984, so it is 41 years old, younger than the Iowa average of 45.5 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 2,440 vehicles a day, roughly 11% of them trucks, projected to reach 2,440 by 2043. The structure is 188 ft (57.3 m) long and 43 ft wide. If it were closed, the detour would be 37.9 mi (61 km).

Location

Open in Google Maps
CarriesIa 16
CrossesBNSF RR
Location0.4 Mi. S of Jct. U.S. 34
RouteState Highway 16
CountyWapello County
StateIowa
Coordinates40.99073, -92.23686
Functional classRural Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating83.3 US tons
Inventory rating49.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length188 ft (57.3 m)
Longest span65 ft (19.8 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,440 (2022)
Projected traffic2,440 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed37.9 mi (61 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ia 16 over BNSF RR built?

It was built in 1984, making it 41 years old in 2025.

What condition is Ia 16 over BNSF RR 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 January 2023.

How much traffic does Ia 16 over BNSF RR carry?

About 2,440 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Ia 16 over BNSF RR?

The structure is 188 ft (57.3 m) long with a longest span of 65 ft (19.8 m) and a deck 43 ft wide.

Who owns Ia 16 over BNSF RR?

It is owned by the State Highway Agency.