US Bridges

SB US 63 over Quarter Section Run

Fair

Bremer County, Iowa · 0.5 Mi. S of Jct. SR C50 · Structure no. 000000000601405

Built
1994
31 years old, rebuilt 2004
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
286 ft
5 main spans
Daily traffic
2,900
2022 count
Owner
State
State Highway Agency

About this bridge

SB US 63 over Quarter Section Run is a prestressed concrete stringer/multi-beam or girder carrying SB US 63 over Quarter Section Run in Bremer County, Iowa. It was built in 1994 and reconstructed in 2004, so it is 31 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 2,900 vehicles a day, roughly 15% of them trucks, projected to reach 2,900 by 2042. The structure is 286 ft (87.3 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSB US 63
CrossesQuarter Section Run
Location0.5 Mi. S of Jct. SR C50
RouteU.S. Route 63
CountyBremer County
StateIowa
Coordinates42.66428, -92.34165
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating41.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length286 ft (87.3 m)
Longest span57 ft (17.4 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2022)
Projected traffic2,900 by 2042
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SB US 63 over Quarter Section Run built?

It was built in 1994, making it 31 years old in 2025. It was reconstructed in 2004.

What condition is SB US 63 over Quarter Section Run 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 March 2023.

How much traffic does SB US 63 over Quarter Section Run carry?

About 2,900 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is SB US 63 over Quarter Section Run?

The structure is 286 ft (87.3 m) long with a longest span of 57 ft (17.4 m) and a deck 43 ft wide.

Who owns SB US 63 over Quarter Section Run?

It is owned by the State Highway Agency.