US Bridges

SE Tacoma ST over B-88 X Filled Streambed

Good

Multnomah County, Oregon · SE Tacoma near Golf Crse · Structure no. 51C02 000 00001

Built
1915
110 years old
Condition
Good
inspected August 2024
Type
Tee Beam
Concrete Continuous
Length
48 ft
4 main spans
Daily traffic
567
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

SE Tacoma ST over B-88 X Filled Streambed is a concrete continuous tee beam carrying SE Tacoma ST over B-88 X Filled Streambed in Multnomah County, Oregon. It was built in 1915, so it is 110 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 567 vehicles a day, roughly 1% of them trucks, projected to reach 626 by 2025. The structure is 48 ft (14.6 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSE Tacoma ST
CrossesB-88 X Filled Streambed
LocationSE Tacoma near Golf Crse
RouteCounty Highway 9704
StateOregon
Coordinates45.46522, -122.63586
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length48 ft (14.6 m)
Longest span23 ft (7 m)
Deck width27 ft (8.1 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic567 (2020)
Projected traffic626 by 2025
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SE Tacoma ST over B-88 X Filled Streambed built?

It was built in 1915, making it 110 years old in 2025.

What condition is SE Tacoma ST over B-88 X Filled Streambed 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 August 2024.

How much traffic does SE Tacoma ST over B-88 X Filled Streambed carry?

About 567 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is SE Tacoma ST over B-88 X Filled Streambed?

The structure is 48 ft (14.6 m) long with a longest span of 23 ft (7 m) and a deck 27 ft wide.

Who owns SE Tacoma ST over B-88 X Filled Streambed?

It is owned by the City or Municipal Highway Agency.