US Bridges

US 61 NB over BNSF RR

Fair

Lee County, Iowa · 3.9 Mi. N of Jct. US 218 · Structure no. 000000000607725

Built
1999
26 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
248 ft
3 main spans
Daily traffic
3,500
2022 count
Owner
State
State Highway Agency

About this bridge

US 61 NB over BNSF RR is a prestressed concrete stringer/multi-beam or girder carrying US 61 NB over BNSF RR in Lee County, Iowa. It was built in 1999, so it is 26 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 3,500 vehicles a day, roughly 10% of them trucks, projected to reach 3,500 by 2043. The structure is 248 ft (75.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 61 NB
CrossesBNSF RR
Location3.9 Mi. N of Jct. US 218
RouteU.S. Route 61
StateIowa
Coordinates40.56562, -91.42913
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating47.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length248 ft (75.6 m)
Longest span86 ft (26.2 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2022)
Projected traffic3,500 by 2043
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 US 61 NB over BNSF RR built?

It was built in 1999, making it 26 years old in 2025.

What condition is US 61 NB 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 September 2023.

How much traffic does US 61 NB over BNSF RR carry?

About 3,500 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is US 61 NB over BNSF RR?

The structure is 248 ft (75.6 m) long with a longest span of 86 ft (26.2 m) and a deck 43 ft wide.

Who owns US 61 NB over BNSF RR?

It is owned by the State Highway Agency.