US Bridges

SB US 61 over BNSF RR

Good

Lee County, Iowa · 1.1 Mi. S of Jct. Ia. 2 · Structure no. 000000000607740

Built
1999
26 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
196 ft
3 main spans
Daily traffic
3,850
2022 count
Owner
State
State Highway Agency

About this bridge

SB US 61 over BNSF RR is a prestressed concrete stringer/multi-beam or girder carrying SB US 61 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 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 3,850 vehicles a day, roughly 9% of them trucks, projected to reach 3,850 by 2044. The structure is 196 ft (59.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSB US 61
CrossesBNSF RR
Location1.1 Mi. S of Jct. Ia. 2
RouteU.S. Route 61
StateIowa
Coordinates40.61772, -91.41456
Functional classRural Principal Arterial - Other

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.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
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 alignment8: Equal to present desirable criteria
Operating rating76.6 US tons
Inventory rating45.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length196 ft (59.7 m)
Longest span73 ft (22.3 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,850 (2022)
Projected traffic3,850 by 2044
Trucks9%
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 SB US 61 over BNSF RR built?

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

What condition is SB US 61 over BNSF RR 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 January 2024.

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

About 3,850 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is SB US 61 over BNSF RR?

The structure is 196 ft (59.7 m) long with a longest span of 73 ft (22.3 m) and a deck 43 ft wide.

Who owns SB US 61 over BNSF RR?

It is owned by the State Highway Agency.