US Bridges

Ia 9 over Over BNSF RR

Fair

Lyon County, Iowa · 0.2 Mi. E of SR K30 · Structure no. 000000000034621

Built
1982
43 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
171 ft
3 main spans
Daily traffic
3,180
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 9 over Over BNSF RR is a prestressed concrete stringer/multi-beam or girder carrying Ia 9 over Over BNSF RR in Lyon County, Iowa. It was built in 1982, so it is 43 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 3,180 vehicles a day, roughly 14% of them trucks, projected to reach 3,180 by 2043. The structure is 171 ft (52.1 m) long and 47 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesIa 9
CrossesOver BNSF RR
Location0.2 Mi. E of SR K30
RouteState Highway 9
CountyLyon County
StateIowa
Coordinates43.43307, -96.33053
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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating88.8 US tons
Inventory rating53.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span57 ft (17.4 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,180 (2022)
Projected traffic3,180 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.2 mi (10 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 9 over Over BNSF RR built?

It was built in 1982, making it 43 years old in 2025.

What condition is Ia 9 over 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 February 2023.

How much traffic does Ia 9 over Over BNSF RR carry?

About 3,180 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is Ia 9 over Over BNSF RR?

The structure is 171 ft (52.1 m) long with a longest span of 57 ft (17.4 m) and a deck 47 ft wide.

Who owns Ia 9 over Over BNSF RR?

It is owned by the State Highway Agency.