US Bridges

NB US 63 over Quarter Section Run Crk.

Good

Bremer County, Iowa · 0.5 Mi. S of Jct. SR C50 · Structure no. 000000000601400

Built
1994
31 years old, rebuilt 2004
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
286 ft
5 main spans
Daily traffic
2,950
2022 count
Owner
State
State Highway Agency

About this bridge

NB US 63 over Quarter Section Run Crk. is a prestressed concrete stringer/multi-beam or girder carrying NB US 63 over Quarter Section Run Crk. 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 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 2,950 vehicles a day, roughly 15% of them trucks, projected to reach 2,950 by 2042. The structure is 286 ft (87.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNB US 63
CrossesQuarter Section Run Crk.
Location0.5 Mi. S of Jct. SR C50
RouteU.S. Route 63
CountyBremer County
StateIowa
Coordinates42.66377, -92.34071
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.
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length286 ft (87.2 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 traffic2,950 (2022)
Projected traffic2,950 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 NB US 63 over Quarter Section Run Crk. built?

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

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

How much traffic does NB US 63 over Quarter Section Run Crk. carry?

About 2,950 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is NB US 63 over Quarter Section Run Crk.?

The structure is 286 ft (87.2 m) long with a longest span of 57 ft (17.4 m) and a deck 43 ft wide.

Who owns NB US 63 over Quarter Section Run Crk.?

It is owned by the State Highway Agency.